332354 + Interview Questions in Secondary School in Math Page 354 InterviewSolution

17651.	Factories the the following x^+4x-32
Answer» Step-by-step EXPLANATION: ${x}^{2} + 4x - 32 = 0$ ${x}^{2} + 8x - 4x - 32 = 0$ $x(x + 8) - 4(x + 8)$ $(x - 4)(x + 8)$ here is your answer hope it HELPS you..!!!

17651.

Factories the the following x^+4x-32

Answer»

Step-by-step EXPLANATION:

${x}^{2} + 4x - 32 = 0$

${x}^{2} + 8x - 4x - 32 = 0$

$x(x + 8) - 4(x + 8)$

$(x - 4)(x + 8)$

here is your answer

hope it HELPS you..!!!

Discussion

17652.	2√28-√75-1/√3 step by step
Answer» Answer: STEP BY STEP Step-by-step explanation: The first term is, x2 its coefficient is 1 . The middle term is, -28x its coefficient is -28 . The last term, "the constant", is +75 Step-1 : Multiply the coefficient of the first term by the constant 1 • 75 = 75 Step-2 : Find two factors of 75 WHOSE SUM equals the coefficient of the middle term, which is -28 . -75 + -1 = -76 -25 + -3 = -28 That's it Step-3 : Rewrite the polynomial splitting the middle term using the two factors found in step 2 above, -25 and -3 x2 - 25x - 3x - 75 Step-4 : Add up the first 2 terms, pulling out like factors : X • (x-25) Add up the last 2 terms, pulling out common factors : 3 • (x-25) Step-5 : Add up the four terms of step 4 : (x-3) • (x-25) Which is the desired factorization Equation at the end of step 1 : (x - 3) • (x - 25) = 0 FOLLOW ME MARK AS BRAINLIST

17652.

2√28-√75-1/√3 step by step

Answer»

Answer:

STEP BY STEP

Step-by-step explanation:

The first term is, x2 its coefficient is 1 .

The middle term is, -28x its coefficient is -28 .

The last term, "the constant", is +75

Step-1 : Multiply the coefficient of the first term by the constant 1 • 75 = 75

Step-2 : Find two factors of 75 WHOSE SUM equals the coefficient of the middle term, which is -28 .

-75 + -1 = -76

-25 + -3 = -28 That's it

Step-3 : Rewrite the polynomial splitting the middle term using the two factors found in step 2 above, -25 and -3

x2 - 25x - 3x - 75

Step-4 : Add up the first 2 terms, pulling out like factors :

X • (x-25)

Add up the last 2 terms, pulling out common factors :

3 • (x-25)

Step-5 : Add up the four terms of step 4 :

(x-3) • (x-25)

Which is the desired factorization

Equation at the end of step

1

:

(x - 3) • (x - 25) = 0

FOLLOW ME

MARK AS BRAINLIST

Discussion

17653.	16. एक दुकानदार ने ₹ 600 के अंकित मूल्य की एक कुर्सी क्रमशः 15% तथा20% की दो क्रमिक छूटों पर खरीदी। उसने उस कुसी के परिवहन पर ₹ 28खर्च किए, तत्पश्चात् उसे ₹ 545 में बेच दिया। तद्नुसार, उसके लाभ काप्रतिशत कितना था?(b) 30(d) 2010).35
Answer» Answer: 20 Step-by-step EXPLANATION: jjdhajodagsjjwgsiwi

17653.

16. एक दुकानदार ने ₹ 600 के अंकित मूल्य की एक कुर्सी क्रमशः 15% तथा20% की दो क्रमिक छूटों पर खरीदी। उसने उस कुसी के परिवहन पर ₹ 28खर्च किए, तत्पश्चात् उसे ₹ 545 में बेच दिया। तद्नुसार, उसके लाभ काप्रतिशत कितना था?(b) 30(d) 2010).35

Answer»

Answer:

20

Step-by-step EXPLANATION:

jjdhajodagsjjwgsiwi

Discussion

17654.	नपा तक ट्रेन इज गिवन बाय द इक्वेशन टू एक्स माइनस 3 बाय इज इक्वल टू 15 एंड द पार्ट ऑफ अनदर कैन बी गिवेन बाय फॉर एस माइनस एक्स व्हाई इज इक्वल टू द प्रेजेंट सिचुएशन क्लासिक एंड राइट ऑब्जरवेशन
Answer» Step-by-step EXPLANATION: नपा तक ट्रेन इज गिवन बाय द इक्वेशन टू एक्स माइनस 3 बाय इज इक्वल टू 15 एंड द पार्ट ऑफ अनदर कैन बी गिवेन बाय फॉर एस माइनस एक्स व्हाई इज इक्वल टू द प्रेजेंट सिचुएशन क्लासिक एंड राइट ऑब्जरवेशननपा तक ट्रेन इज गिवन बाय द इक्वेशन टू एक्स माइनस 3 बाय इज इक्वल टू 15 एंड द पार्ट ऑफ अनदर कैन बी गिवेन बाय फॉर एस माइनस एक्स व्हाई इज इक्वल टू द प्रेजेंट सिचुएशन क्लासिक एंड राइट ऑब्जरवेशननपा तक ट्रेन इज गिवन बाय द इक्वेशन टू एक्स माइनस 3 बाय इज इक्वल टू 15 एंड द पार्ट ऑफ अनदर कैन बी गिवेन बाय फॉर एस माइनस एक्स व्हाई इज इक्वल टू द प्रेजेंट सिचुएशन क्लासिक एंड राइट ऑब्जरवेशननपा तक ट्रेन इज गिवन बाय द इक्वेशन टू एक्स माइनस 3 बाय इज इक्वल टू 15 एंड द पार्ट ऑफ अनदर कैन बी गिवेन बाय फॉर एस माइनस एक्स व्हाई इज इक्वल टू द प्रेजेंट सिचुएशन क्लासिक एंड राइट ऑब्जरवेशन

17654.

नपा तक ट्रेन इज गिवन बाय द इक्वेशन टू एक्स माइनस 3 बाय इज इक्वल टू 15 एंड द पार्ट ऑफ अनदर कैन बी गिवेन बाय फॉर एस माइनस एक्स व्हाई इज इक्वल टू द प्रेजेंट सिचुएशन क्लासिक एंड राइट ऑब्जरवेशन

Answer»

Step-by-step EXPLANATION:

नपा तक ट्रेन इज गिवन बाय द इक्वेशन टू एक्स माइनस 3 बाय इज इक्वल टू 15 एंड द पार्ट ऑफ अनदर कैन बी गिवेन बाय फॉर एस माइनस एक्स व्हाई इज इक्वल टू द प्रेजेंट सिचुएशन क्लासिक एंड राइट ऑब्जरवेशननपा तक ट्रेन इज गिवन बाय द इक्वेशन टू एक्स माइनस 3 बाय इज इक्वल टू 15 एंड द पार्ट ऑफ अनदर कैन बी गिवेन बाय फॉर एस माइनस एक्स व्हाई इज इक्वल टू द प्रेजेंट सिचुएशन क्लासिक एंड राइट ऑब्जरवेशननपा तक ट्रेन इज गिवन बाय द इक्वेशन टू एक्स माइनस 3 बाय इज इक्वल टू 15 एंड द पार्ट ऑफ अनदर कैन बी गिवेन बाय फॉर एस माइनस एक्स व्हाई इज इक्वल टू द प्रेजेंट सिचुएशन क्लासिक एंड राइट ऑब्जरवेशननपा तक ट्रेन इज गिवन बाय द इक्वेशन टू एक्स माइनस 3 बाय इज इक्वल टू 15 एंड द पार्ट ऑफ अनदर कैन बी गिवेन बाय फॉर एस माइनस एक्स व्हाई इज इक्वल टू द प्रेजेंट सिचुएशन क्लासिक एंड राइट ऑब्जरवेशन

Discussion

17655.	1)Find the square root of 18.69 and correcdecimal places.
Answer» Answer: 4.323193264243457 mark me as BRAINLIEST

17655.

1)Find the square root of 18.69 and correcdecimal places.

Answer»

Answer:

4.323193264243457

mark me as BRAINLIEST

Discussion

17656.	The area of a rectangle gets reduced by 9 square units. If it's length is reduced by 5 units and breath is increased by 3units .the area is increasing by 67 square units. If length is increasing by 3 unit and breath is increasing by 2 units then find the perimeter of the rectangle
Answer» Answer: ● PERIMETER of rectangle is 52 units. Step-by-step explanation: Let , length and breadth of Rectangle be l and b respectively. then, area of rectangle will be l b First case : when length is reduced by 5 units and breadth is INCREASED by 3 units then, area of rectangle is reduced by 9 sq. units. so, → ( l - 5 ) ( b + 3 ) = l b - 9 → l b + 3 l - 5 b - 15 = l b - 9 → 3 l - 5 b - 15 = - 9 → 3 l - 5 b = 6 → 3 l = 6 + 5 b → l = ( 6 + 5 b ) / 3 ____eqn① Second case : when length is increased by 3 units and breadth is increased by 2 units then area of rectangle is increased by 67 sq. units. so, → ( l + 3 ) ( b + 2 ) = l b + 67 → l b + 2 l + 3 b + 6 = l b + 67 → 2 l + 3 b = 67 - 6 → 2 l + 3 b = 61 [ using equation ① ] → 2 ((6+5b)/3) + 3 b = 61 → (12 + 10 b)/3 + 3 b = 61 [ multiplying by 3 both sides ] → 12 + 10 b + 9 b = 183 → 19 b = 183 - 12 → 19 b = 171 → b = 171 / 19 → b = 9 units [ putting VALUE of b in eqn ① ] → l = ( 6 + 5 b ) / 3 → l = ( 6 + 5 (9) ) / 3 → l = 51 / 3 → l = 17 units Therefore, Length and breadth of rectangle are 8 units and 17 units respectively. so, → perimeter of rectangle = 2 ( l + b ) → perimeter of rectangle = 2 ( 9 + 17 ) → perimeter of rectangle = 52 units. Therefore, perimeter of rectangle is 52 units.

17656.

The area of a rectangle gets reduced by 9 square units. If it's length is reduced by 5 units and breath is increased by 3units .the area is increasing by 67 square units. If length is increasing by 3 unit and breath is increasing by 2 units then find the perimeter of the rectangle

Answer»

Answer:

● PERIMETER of rectangle is 52 units.

Step-by-step explanation:

Let ,

length and breadth of Rectangle be l and b respectively.

then, area of rectangle will be l b

First case :

when length is reduced by 5 units and breadth is INCREASED by 3 units then, area of rectangle is reduced by 9 sq. units.

so,

→ ( l - 5 ) ( b + 3 ) = l b - 9

→ l b + 3 l - 5 b - 15 = l b - 9

→ 3 l - 5 b - 15 = - 9

→ 3 l - 5 b = 6

→ 3 l = 6 + 5 b

→ l = ( 6 + 5 b ) / 3 ____eqn①

Second case :

when length is increased by 3 units and breadth is increased by 2 units then area of rectangle is increased by 67 sq. units.

so,

→ ( l + 3 ) ( b + 2 ) = l b + 67

→ l b + 2 l + 3 b + 6 = l b + 67

→ 2 l + 3 b = 67 - 6

→ 2 l + 3 b = 61

[ using equation ① ]

→ 2 ((6+5b)/3) + 3 b = 61

→ (12 + 10 b)/3 + 3 b = 61

[ multiplying by 3 both sides ]

→ 12 + 10 b + 9 b = 183

→ 19 b = 183 - 12

→ 19 b = 171

→ b = 171 / 19

→ b = 9 units

[ putting VALUE of b in eqn ① ]

→ l = ( 6 + 5 b ) / 3

→ l = ( 6 + 5 (9) ) / 3

→ l = 51 / 3

→ l = 17 units

Therefore,

Length and breadth of rectangle are 8 units and 17 units respectively.

so,

→ perimeter of rectangle = 2 ( l + b )

→ perimeter of rectangle = 2 ( 9 + 17 )

→ perimeter of rectangle = 52 units.

Therefore,

perimeter of rectangle is 52 units.

Discussion

17657.	Value of sqrt 104976.hence find the sum of sqrt of 1049.76 and sqrt of 10.4976
Answer» Answer: 104976.hence FIND the SUM of SQRT of 1049.76 and sqrt of 10.4976

17657.

Value of sqrt 104976.hence find the sum of sqrt of 1049.76 and sqrt of 10.4976

Answer»

Answer:

104976.hence FIND the SUM of SQRT of 1049.76 and sqrt of 10.4976

Discussion

17658.	X²+3x+70=0How to solve this quadratic equation by factorisation method
Answer» You can't. The two factors of 70 which are 7, 10 give the MINIMUM sum 17. It is impossible to GET 3 from both numbers. You are only able to solve this over complex, because two ROOTS are both complex.

17658.

X²+3x+70=0How to solve this quadratic equation by factorisation method

Answer»

You can't. The two factors of 70 which are 7, 10 give the MINIMUM sum 17. It is impossible to GET 3 from both numbers.

You are only able to solve this over complex, because two ROOTS are both complex.

Discussion

17659.	the weight of a piece of stone when fully immersed in water is 18N and it displaces 4N of water . What is the weight of the stone in air
Answer» Answer: The weight of STONE in air = 18 N Step-by-step explanation: Given, Weight in WATER( $W_w$ ) = 14 N Displaced water = 4 N ∴Weight in air can be determined as : Weight in air( $W_a$ ) = Weight in water( $W_w$ ) + water DISPLACES $W_a$ = 14 N + 4 N ∴ Weight in air( $W_a$ ) = 18 N

17659.

the weight of a piece of stone when fully immersed in water is 18N and it displaces 4N of water . What is the weight of the stone in air

Answer»

Answer:

The weight of STONE in air = 18 N

Step-by-step explanation:

Given,

Weight in WATER( $W_w$ ) = 14 N

Displaced water = 4 N

∴Weight in air can be determined as :

Weight in air( $W_a$ ) = Weight in water( $W_w$ ) + water DISPLACES

$W_a$ = 14 N + 4 N

∴ Weight in air( $W_a$ ) = 18 N

Discussion

17660.	If y=x3-4x2+5 then dy/dx is equal to
Answer» Answer: 3x²-8x Step-by-step explanation: Given that, y=x³-4x²+5 now, differentiate with respect to 'x' on both sides dy/DX = d/dx (x³-4x²+5) ⇒dy/dx = 3x² -4(2)x +0 (∵d(xⁿ)/dx = n(x)ⁿ⁻¹ & d(CONSTANT)/dx = 0) ⇒dy/dx = 3x²-8x ∴dy/dx = 3x²-8x HOPE THIS WOULD BE HELPFUL FOR YOU

17660.

If y=x3-4x2+5 then dy/dx is equal to

Answer»

Answer:

3x²-8x

Step-by-step explanation:

Given that,

y=x³-4x²+5

now, differentiate with respect to 'x' on both sides

dy/DX = d/dx (x³-4x²+5)

⇒dy/dx = 3x² -4(2)x +0 (∵d(xⁿ)/dx = n(x)ⁿ⁻¹ & d(CONSTANT)/dx = 0)

⇒dy/dx = 3x²-8x

∴dy/dx = 3x²-8x

HOPE THIS WOULD BE HELPFUL FOR YOU

Discussion

17661.	And there is written 2 my mistake
Answer» Answer:123456778888880 Step-by-step EXPLANATION:

17661.

And there is written 2 my mistake

Answer»

Answer:123456778888880

Step-by-step EXPLANATION:

Discussion

17662.	The product of two numbers is 42 if one of them is 49/5,find the other
Answer» ANSWER:30/7 Solution: GIVEN:- 1st no.=49/5 Product of 2 no.=42 Solution:- Let 2nd no. be x A/q 49/5x=42 x=42÷49/5 x=425/49 (By USING reciprocal) x=30/7 Please MARK me as brainliest.

17662.

The product of two numbers is 42 if one of them is 49/5,find the other

Answer»

ANSWER:30/7

Solution:

GIVEN:-

1st no.=49/5

Product of 2 no.=42

Solution:-

Let 2nd no. be x

A/q

49/5*x=42
x=42÷49/5
x=42*5/49 (By USING reciprocal)
x=30/7

Please MARK me as brainliest.

Discussion

17663.	A man riding on a bicycle at a speed of 12km/h crosses a bridge in 7 min. Find the length of the bridge
Answer» Answer: 1250 METRES Step-by-step EXPLANATION: By 1250 metres PER KM

17663.

A man riding on a bicycle at a speed of 12km/h crosses a bridge in 7 min. Find the length of the bridge

Answer»

Answer:

1250 METRES

Step-by-step EXPLANATION:

By 1250 metres PER KM

Discussion

17664.	Classify as injection, surjection, or bijection(give reason):f: R -> R, f(x)=x^3 - x
Answer» Step-by-step EXPLANATION: it is BIJECTION of COUSE

17664.

Classify as injection, surjection, or bijection(give reason):f: R -> R, f(x)=x^3 - x

Answer»

Step-by-step EXPLANATION:

it is BIJECTION of COUSE

Discussion

17665.	2)Find the value of 19681375
Answer» Step-by-step EXPLANATION: $\huge\bold\star\red(Follow\:me)\star$

17665.

2)Find the value of 19681375

Answer»

Step-by-step EXPLANATION:

$\huge\bold\star\red(Follow\:me)\star$

Discussion

17666.	(a)(iv) In a right circular cylinder, if the length of radius is halved and height is doubled,volume of cylinder will be1
Answer» Answer: The FORMULA for volume of RIGHT circular cylinder is πr²h So , new R will be r/2 and new H will be 2h New volume = π(r/2)²2h = πr²/4 * 2h = πr²h/2 Original = πr²h New = πr²h/2 Therefore, the volume gets halved Hope this helps...

17666.

(a)(iv) In a right circular cylinder, if the length of radius is halved and height is doubled,volume of cylinder will be1

Answer»

Answer:

The FORMULA for volume of RIGHT circular cylinder is πr²h

So , new R will be r/2 and new H will be 2h

New volume = π(r/2)²2h

= πr²/4 * 2h = πr²h/2

Original = πr²h New = πr²h/2

Therefore, the volume gets halved

Hope this helps...

Discussion

17667.	Find the HCF of the numbers 'a' and 'b' where:a = 4².x 5³ x 7²b = 2³. x 5 x 7
Answer» ANSWER: a=4^2×5^3×7^2 = 4×4×5×5×5×7×7 =2×2×2×2×5×5×5×7×7 B=2^3×5×7 =2×2×2×5×7 HCF of a and b =2×2×2×5×7=280

17667.

Find the HCF of the numbers 'a' and 'b' where:a = 4².x 5³ x 7²b = 2³. x 5 x 7

Answer»

ANSWER:

a=4^2×5^3×7^2

= 4×4×5×5×5×7×7

=2×2×2×2×5×5×5×7×7

B=2^3×5×7

=2×2×2×5×7

HCF of a and b =2×2×2×5×7=280

Discussion

17668.	Remove 'too' from this sentence - "The rod is too hard to break". *The rod is not so hard to break.The rod is so hard to break.The rod is so hard that one cannot break it.Anyone can break this rod although it is so hard.
Answer» ANSWER: The ROD is HARD to BREAK

17668.

Remove 'too' from this sentence - "The rod is too hard to break". *The rod is not so hard to break.The rod is so hard to break.The rod is so hard that one cannot break it.Anyone can break this rod although it is so hard.

Answer»

ANSWER:

The ROD is HARD to BREAK

Discussion

17669.	Solve the followings:Q(1). 3x – (y + 7)/11 + 2 = 10 2y + (x + 11)/7 = 10
Answer» Answer: Step-by-step explanation: Let the present age of Aftab = x And, present age of his daughter is represented as = y Seven YEARS ago, Aftab’s age = x – 7 Age of Aftab’s daughter = y – 7 According to the question, (x – 7) = 7 (y – 7 ) x – 7 = 7 y – 49 x – 7y = – 49 + 7 x – 7y = – 42 … (i) x = 7y – 42 PUTTING y = 5, 6 and 7, we GET x = 7 × 5 – 42 = 35 – 42 = – 7 x = 7 × 6 – 42 = 42 – 42 = 0 x = 7 × 7 – 42 = 49 – 42 = 7 THREE years from now, Aftab’s age = x + 3 Age of Aftab’s daughter = y + 3 According to the question, (x + 3) = 3 (y + 3) x + 3 = 3y + 9 x – 3y = 9 – 3 x – 3y = 6 … (ii) x = 3y + 6 Putting, y = – 2, –1 and 0, we get x = 3 × – 2 + 6 = – 6 + 6 =0 x = 3 × – 1 + 6 = – 3 + 6 = 3 x = 3 × 0 + 6 = 0 + 6 = 6 Algebraic representation Mark as brainlist Follow me

17669.

Solve the followings:Q(1). 3x – (y + 7)/11 + 2 = 10 2y + (x + 11)/7 = 10

Answer»

Answer:

Step-by-step explanation:

Let the present age of Aftab = x

And, present age of his daughter is represented as = y

Seven YEARS ago,

Aftab’s age = x – 7

Age of Aftab’s daughter = y – 7

According to the question,

(x – 7) = 7 (y – 7 )

x – 7 = 7 y – 49

x – 7y = – 49 + 7

x – 7y = – 42 … (i)

x = 7y – 42

PUTTING y = 5, 6 and 7, we GET

x = 7 × 5 – 42 = 35 – 42 = – 7

x = 7 × 6 – 42 = 42 – 42 = 0

x = 7 × 7 – 42 = 49 – 42 = 7

THREE years from now,

Aftab’s age = x + 3

Age of Aftab’s daughter = y + 3

According to the question,

(x + 3) = 3 (y + 3)

x + 3 = 3y + 9

x – 3y = 9 – 3

x – 3y = 6 … (ii)

x = 3y + 6

Putting, y = – 2, –1 and 0, we get

x = 3 × – 2 + 6 = – 6 + 6 =0

x = 3 × – 1 + 6 = – 3 + 6 = 3

x = 3 × 0 + 6 = 0 + 6 = 6

Algebraic representation

Mark as brainlist

Follow me

Discussion

17670.	A tree is 86m tall. 700cm of itis cut down.what is the present height of the tree
Answer» ANSWER: Step-by-step EXPLANATION:

17670.

A tree is 86m tall. 700cm of itis cut down.what is the present height of the tree

Answer»

ANSWER:

Step-by-step EXPLANATION:

Discussion

17671.	1/2 of 4/7 or 2/3 of 3/7
Answer» Answer: 1/2=0.5.....................

17671.

1/2 of 4/7 or 2/3 of 3/7

Answer»

Answer:

1/2=0.5.....................

Discussion

17672.	0. Find the median for the following dataVariate2326203028251816Frequency4613511489
Answer» ANSWER: 24 is the answer for your QUESTION

17672.

0. Find the median for the following dataVariate2326203028251816Frequency4613511489

Answer»

ANSWER:

24 is the answer for your QUESTION

Discussion

17673.	1/2 of 4/7 or 2/7 of 3/7 which on is greater
Answer» Answer: 4/7 is GREATER.......... ........

17673.

1/2 of 4/7 or 2/7 of 3/7 which on is greater

Answer»

Answer:

4/7 is GREATER.......... ........

Discussion

17674.	The weight of 1 basket of fruits is 2 whole 4 by 5 kg. Find the weight of 25 such basket?
Answer» ANSWER: PLEASE GIVE me 20 thanks. Step-by-step explanation: have a great day with your family and FRIENDS

17674.

The weight of 1 basket of fruits is 2 whole 4 by 5 kg. Find the weight of 25 such basket?

Answer»

ANSWER:

PLEASE GIVE me 20 thanks.

Step-by-step explanation:

have a great day with your family and FRIENDS

Discussion

17675.	A___is an ordered collection of objects
Answer» ANSWER: Set Step-by-step EXPLANATION:

17675.

A___is an ordered collection of objects

Answer»

ANSWER:

Set

Step-by-step EXPLANATION:

Discussion

17676.	If a pizza is shared between 3 people what will be each share of the 3 people
Answer» Answer: 1 PIECE each if there are 3 PIECES of pizza. it will be equivalent to 1/3 Step-by-step EXPLANATION:

17676.

If a pizza is shared between 3 people what will be each share of the 3 people

Answer»

Answer:

1 PIECE each if there are 3 PIECES of pizza. it will be equivalent to 1/3

Step-by-step EXPLANATION:

Discussion

17677.	What should be added to10 2/3 to get 15 1/6
Answer» Answer: 37/6 is the answer Step-by-step EXPLANATION: MARK me as BRAINLIEST

17677.

What should be added to10 2/3 to get 15 1/6

Answer»

Answer:

37/6 is the answer

Step-by-step EXPLANATION:

MARK me as BRAINLIEST

Discussion

17678.	Nth term of A. P. an=3+4n common difference is 7,4,1,3,
Answer» ANSWER: common difference = A2 - A1 = 4-7= -3 d= -3

17678.

Nth term of A. P. an=3+4n common difference is 7,4,1,3,

Answer»

ANSWER:

common difference = A2 - A1

= 4-7= -3

d= -3

Discussion

17679.	.Solution of the equation x + 3y = 13, 3x + y = 7
Answer» Answer : X = 1 y = 4 Solution : By elimination method : x + 3y = 13 ______(1) 3x + y = 7 _______(2) Multiplying equation (1) with 3 . 3x + 9y = 39 ______(3) Substracting equation (2) from equation (3) 3x + 9y - (3x +y ) = 39 - 7 3x - 3x + 9y -y = 32 8y = 32 y = 32/8 y = 4 Using this in equation (1) x+3y = 13 x + 3 ×4 = 13 x + 12 = 13 x = 13 -12 x = 1 $\underline{ \therefore \sf The \: value \: of \: x \: is \: 1 \: and \: y \: is \: 4.}$ Verification : Using x = 1 and y = 4 in equation (2) 3x + y = 7 3 × 1 + 4 = 7 7 = 7 LHS = RHS Hence verified

17679.

.Solution of the equation x + 3y = 13, 3x + y = 7

Answer»

Answer :

X = 1
y = 4

Solution :

By elimination method :

x + 3y = 13 ______(1)

3x + y = 7 _______(2)

Multiplying equation (1) with 3 .

3x + 9y = 39 ______(3)

Substracting equation (2) from equation (3)

3x + 9y - (3x +y ) = 39 - 7

3x - 3x + 9y -y = 32

8y = 32

y = 32/8

y = 4

Using this in equation (1)

x+3y = 13

x + 3 ×4 = 13

x + 12 = 13

x = 13 -12

x = 1

$\underline{ \therefore \sf The \: value \: of \: x \: is \: 1 \: and \: y \: is \: 4.}$

Verification :

Using x = 1 and y = 4 in equation (2)

3x + y = 7

3 × 1 + 4 = 7

7 = 7

LHS = RHS

Hence verified

Discussion

17680.	The difference between the two numbers is 2 and their product is 143 find the number
Answer» ANSWER: COMPLETED MAM UH HUH Completed mam uh huh Completed mam uh huh 2 Step-by-step explanation: Completed mam uh huh Completed mam uh huh Completed mam uh huh

17680.

The difference between the two numbers is 2 and their product is 143 find the number

Answer»

ANSWER:

COMPLETED MAM UH HUH Completed mam uh huh Completed mam uh huh 2

Step-by-step explanation:

Completed mam uh huh Completed mam uh huh Completed mam uh huh

Discussion

17681.	Number of line segment required to form a closed figure (a)2(b)3(c)4
Answer» ANSWER: B is the ANSWERS of the QUESTION

17681.

Number of line segment required to form a closed figure (a)2(b)3(c)4

Answer»

ANSWER:

B is the ANSWERS of the QUESTION

Discussion

17682.	4x+x – Y/8= 17, x + 2y=y - 2/3-2
Answer» Answer: Step-by-step explanation: Hey MATE HOPE UR safe at home Refer to the attachment Mark as BRAINLIST Follow me

17682.

4x+x – Y/8= 17, x + 2y=y - 2/3-2

Answer»

Answer:

Step-by-step explanation:

Hey MATE

HOPE UR safe at home

Refer to the attachment

Mark as BRAINLIST

Follow me

Discussion

17683.	MATICSEXERCISE 2.2you getfrom a number and multiply the result by21. If you subtractthe number?imming pool is 154 m. Its length is 2 m mon
Answer» ANSWER: UNABLE to UNDERSTAND the QUESTION

17683.

MATICSEXERCISE 2.2you getfrom a number and multiply the result by21. If you subtractthe number?imming pool is 154 m. Its length is 2 m mon

Answer»

ANSWER:

UNABLE to UNDERSTAND the QUESTION

Discussion

17684.	FACTORIZE x²-2x²-13x-10 using factor theorem Plz answer urgent!! I will mark you brainliest
Answer» ANSWER: here you have it Step-by-step EXPLANATION: PLZZZ MARK as.....

17684.

FACTORIZE x²-2x²-13x-10 using factor theorem Plz answer urgent!! I will mark you brainliest

Answer»

ANSWER:

here you have it

Step-by-step EXPLANATION:

PLZZZ MARK as.....

Discussion

17685.	(e) [40+ (19-38-7))
Answer» Answer: 14 Step-by-step EXPLANATION: = 40 + ( 19 - 38 -7 ) = 40 + ( - 19 - 7 ) = 40 + ( - 26 ) = 40 - 26 = 14

17685.

(e) [40+ (19-38-7))

Answer»

Answer:

14

Step-by-step EXPLANATION:

= 40 + ( 19 - 38 -7 )

= 40 + ( - 19 - 7 )

= 40 + ( - 26 )

= 40 - 26

= 14

Discussion

17686.	(242×197)×581=242×(197×=
Answer» Answer: 242×197= 47,674 (242×197)×581= 27,698,594 Hope it HELPS

17686.

(242×197)×581=242×(197×=

Answer»

Answer:

242×197= 47,674

(242×197)×581= 27,698,594

Hope it HELPS

Discussion

17687.	pathagores therom deals with which geomatericl figure ?(a.triangle b. circle c. cone.d.rectanulgr.....tick the crroct option
Answer» ANSWER: a triangle I HOPE it will HELP u plz MARK as brainiest follow me plz

17687.

pathagores therom deals with which geomatericl figure ?(a.triangle b. circle c. cone.d.rectanulgr.....tick the crroct option

Answer»

ANSWER:

a triangle

I HOPE it will HELP u

plz MARK as brainiest

follow me plz

Discussion

17688.	If x=2, and x=0 are roots of the polynomialf(x)=2^3-5^2+ ax+b. Find the value of a and b
Answer» Answer: I can't understand you QUESTIONS please CLICK PICTURE of you QUESTION

17688.

If x=2, and x=0 are roots of the polynomialf(x)=2^3-5^2+ ax+b. Find the value of a and b

Answer»

Answer:

I can't understand you QUESTIONS please CLICK PICTURE of you QUESTION

Discussion

17689.	The depth of circular well is 5m water level is below2m from the upper face of the wall. Find the pressureat its base(g = 9.8mls2) (Hint : P =hdgand d = (5m ²m) =3m)]
Answer» ANSWER: $\text{[math]}$

17689.

The depth of circular well is 5m water level is below2m from the upper face of the wall. Find the pressureat its base(g = 9.8mls2) (Hint : P =hdgand d = (5m ²m) =3m)]

Answer»

ANSWER:

$\text{[math]}$

Discussion

17690.	3. Factorise the following quadratic polynomby splitting the middle term:(1) x2 + 10x + 16 (2) x2 - 12x + 20(3) 6x2 + 19x + 10 (4) x2 + 14x +(5) x2-3x - 40 (6) 6x2 + 7x-(7) 15x2 + 7x-2(8) x2 - 4x - 7(9) x2 + 2x - 143 (10) 12x2 + 23
Answer» ANSWER: hwiz71isbeisbsbqjjsjeji

17690.

3. Factorise the following quadratic polynomby splitting the middle term:(1) x2 + 10x + 16 (2) x2 - 12x + 20(3) 6x2 + 19x + 10 (4) x2 + 14x +(5) x2-3x - 40 (6) 6x2 + 7x-(7) 15x2 + 7x-2(8) x2 - 4x - 7(9) x2 + 2x - 143 (10) 12x2 + 23

Answer»

ANSWER:

hwiz71isbeisbsbqjjsjeji

Discussion

17691.	Q(2). 1/(2x) + 1/(3y) = 2 1/(3x) + 1/(2y) = 13/6
Answer» Answer: Step-by-step explanation: You can answer this question by substitution or elimination method. I am solving this by substitution.. 1/2x=2-1/3y 1/2x=(6y-1)/3y x=(6y-1)/3y×2 x=(12y-2)/3y putting this value of x in the SECOND equation we will get the value of y and when we will put the value of y in the first equation we will get the value of x then you will end up with the values of x and y. Hope it helps .... If you are SATISFIED by my way of answering this question please mark me as BRAINLIEST. Also you can FOLLOW me. Thanks Follow me

17691.

Q(2). 1/(2x) + 1/(3y) = 2 1/(3x) + 1/(2y) = 13/6

Answer»

Answer:

Step-by-step explanation:

You can answer this question by substitution or elimination method.

I am solving this by substitution..

1/2x=2-1/3y

1/2x=(6y-1)/3y

x=(6y-1)/3y×2

x=(12y-2)/3y

putting this value of x in the SECOND equation

we will get the value of y

and when we will put the value of y in the first equation we will get the value of x

then you will end up with the values of x and y.

Hope it helps ....

If you are SATISFIED by my way of answering this question please mark me as BRAINLIEST. Also you can FOLLOW me.

Thanks

Follow me

Discussion

17692.	If (x-1) (x+2) and (x+3) are the factores of (x) ,then find (x)
Answer» ANSWER: I will GIVE you answer in 5 MINS

17692.

If (x-1) (x+2) and (x+3) are the factores of (x) ,then find (x)

Answer»

ANSWER:

I will GIVE you answer in 5 MINS

Discussion

17693.	√2-8√2 please answer correct
Answer» ANSWER: Here the SURDS ROOT2 and 8ROOT2 are LIKE surds So root2-8root2=-7root2 Hence -7root2 is the answer

17693.

√2-8√2 please answer correct

Answer»

ANSWER:

Here the SURDS ROOT2 and 8ROOT2 are LIKE surds

So root2-8root2=-7root2

Hence -7root2 is the answer

Discussion

17694.	16 - 17 z + Z Square solve
Answer» ANSWER: $16 - 17z + {z}^{2} = {z}^{2} - 17z + 16$ ${z}^{2} - 16z - z + 16$ $z(z - 16) - 1(z - 16)$ $( z - 1)(z - 16)$ here is your answer hope it HELPS you..!!!!

17694.

16 - 17 z + Z Square solve

Answer»

ANSWER:

$16 - 17z + {z}^{2} = {z}^{2} - 17z + 16$

${z}^{2} - 16z - z + 16$

$z(z - 16) - 1(z - 16)$

$( z - 1)(z - 16)$

here is your answer

hope it HELPS you..!!!!

Discussion

17695.	Factorise: (x^2-4x) (x^2-4x-1) -20
Answer» Answer: $(x-5)(x+1)(x-2)^{2}$ Step-by-step explanation: $(x^{2} - 4x)(x^{2} -4x -1) - 20$ Let $x^{2} - 4x$ be = a $(a)(a -1) - 20\\$ $=a^{2} -a - 20$ Now, FACTORISE it USING middle TERM splitting. $= a^{2} -5a + 4a - 20$ $= a(a - 5) + 4(a - 5)$ $= (a-5)(a+4)$ Now, put the value of 'a'. $= (x^{2} - 4x -5)(x^{2} - 4x + 4)$ Now, factorise the TWO quadratic expressions in the brackets by middle term splitting. You will get 4 factors (2 factors of each EXPRESSION). $= [x^{2} - 5x + x -5][x^{2} - 2x -2x + 4]$ $= [x(x-5) + 1(x -5)][x(x-2)-2(x -2)]$ $= (x-5)(x+1)(x-2)(x-2)$ $= (x-5)(x+1)(x-2)^{2}$

17695.

Factorise: (x^2-4x) (x^2-4x-1) -20

Answer»

Answer: $(x-5)(x+1)(x-2)^{2}$

Step-by-step explanation:

$(x^{2} - 4x)(x^{2} -4x -1) - 20$

Let $x^{2} - 4x$ be = a

$(a)(a -1) - 20\\$

$=a^{2} -a - 20$

Now, FACTORISE it USING middle TERM splitting.

$= a^{2} -5a + 4a - 20$

$= a(a - 5) + 4(a - 5)$

$= (a-5)(a+4)$

Now, put the value of 'a'.

$= (x^{2} - 4x -5)(x^{2} - 4x + 4)$

Now, factorise the TWO quadratic expressions in the brackets by middle term splitting. You will get 4 factors (2 factors of each EXPRESSION).

$= [x^{2} - 5x + x -5][x^{2} - 2x -2x + 4]$

$= [x(x-5) + 1(x -5)][x(x-2)-2(x -2)]$

$= (x-5)(x+1)(x-2)(x-2)$

$= (x-5)(x+1)(x-2)^{2}$

Discussion

17696.	Solve this plz i will mark u vari liest
Answer» Answer: 2 x 9 x 4 x √ 5 = 72 x √ 5 = √5 72 please MARK me as brainliest

17696.

Solve this plz i will mark u vari liest

Answer»

Answer:

2 x 9 x 4 x √ 5

= 72 x √ 5

= √5 72

please MARK me as brainliest

Discussion

17697.	If the hight of two right circular cylinder bare in the ratio 3:4 and perimeter are in the ratio 1:2, then find the ratio of their volume
Answer» Step-by-step EXPLANATION: wngwhwbbsbjeiwhbebezeb3vhebeh4hg3gegevsgshwvgszsgwggsgecszwggezwv2zsgcwgsgwzwvgezecegszisisiwia8sbybygshhshshszszwzzszwgwggw

17697.

If the hight of two right circular cylinder bare in the ratio 3:4 and perimeter are in the ratio 1:2, then find the ratio of their volume

Answer»

Step-by-step EXPLANATION:

wngwhwbbsbjeiwhbebezeb3vhebeh4hg3gegevsgshwvgszsgwggsgecszwggezwv2zsgcwgsgwzwvgezecegszisisiwia8sbybygshhshshszszwzzszwgwggw

Discussion

17698.	A59 IVtransversal intersects twoparallel lines, thens which of the followingstatements are true.Each pairD6on same sideof corresponding angles is equalEach pair of alternate interior angles is1 Each pair ofof interior anglestransveral is supplementaryAllthe above.which two sidesofof
Answer» Step-by-step EXPLANATION: what is khf hdhc fxhvhzcqmfw vv

17698.

A59 IVtransversal intersects twoparallel lines, thens which of the followingstatements are true.Each pairD6on same sideof corresponding angles is equalEach pair of alternate interior angles is1 Each pair ofof interior anglestransveral is supplementaryAllthe above.which two sidesofof

Answer»

Step-by-step EXPLANATION:

what is khf

hdhc

fxhvhzcqmfw

vv

Discussion

17699.	For the finite A.p 8 ,15,22.....352 find its 12th term from end
Answer» Step-by-step explanation: 12th TERM from back so a=352 d = -7 n=12 n^th term=a+(n-1)d =352+(12-1)-7 =352 - 77 =275

17699.

For the finite A.p 8 ,15,22.....352 find its 12th term from end

Answer»

Step-by-step explanation:

12th TERM from back

so a=352

d = -7

n=12

n^th term=a+(n-1)d

=352+(12-1)-7

=352 - 77

=275

Discussion

17700.	The radius of circle is 3.5cm. area is 3.85 cm find the corrosponding arc
Answer» Step-by-step explanation: 3.85 cm². ☆ HOPE IT WILL HELP YOU

17700.

The radius of circle is 3.5cm. area is 3.85 cm find the corrosponding arc

Answer»

Step-by-step explanation:

3.85 cm². ☆ HOPE IT WILL HELP YOU

Discussion

Explore topic-wise InterviewSolutions in .

Factories the the following x^+4x-32​

2√28-√75-1/√3 step by step​

1)Find the square root of 18.69 and correcdecimal places.​

The area of a rectangle gets reduced by 9 square units. If it's length is reduced by 5 units and breath is increased by 3units .the area is increasing by 67 square units. If length is increasing by 3 unit and breath is increasing by 2 units then find the perimeter of the rectangle

Answer:

Step-by-step explanation:

Value of sqrt 104976.hence find the sum of sqrt of 1049.76 and sqrt of 10.4976

X²+3x+70=0How to solve this quadratic equation by factorisation method​

the weight of a piece of stone when fully immersed in water is 18N and it displaces 4N of water . What is the weight of the stone in air ​

The weight of STONE in air = 18 N

Weight in air() = Weight in water() + water DISPLACES

∴ Weight in air() = 18 N

If y=x3-4x2+5 then dy/dx is equal to

And there is written 2 my mistake​

The product of two numbers is 42 if one of them is 49/5,find the other​

ANSWER:30/7

Solution:

A man riding on a bicycle at a speed of 12km/h crosses a bridge in 7 min. Find the length of the bridge

Classify as injection, surjection, or bijection(give reason):f: R -> R, f(x)=x^3 - x

2)Find the value of 19681375​

(a)(iv) In a right circular cylinder, if the length of radius is halved and height is doubled,volume of cylinder will be1​

Find the HCF of the numbers 'a' and 'b' where:a = 4².x 5³ x 7²b = 2³. x 5 x 7​

Remove 'too' from this sentence - "The rod is too hard to break". *The rod is not so hard to break.The rod is so hard to break.The rod is so hard that one cannot break it.Anyone can break this rod although it is so hard.​

Solve the followings:Q(1). 3x – (y + 7)/11 + 2 = 10 2y + (x + 11)/7 = 10​

A tree is 86m tall. 700cm of itis cut down.what is the present height of the tree​

1/2 of 4/7 or 2/3 of 3/7​

0. Find the median for the following dataVariate2326203028251816Frequency4613511489​

1/2 of 4/7 or 2/7 of 3/7 which on is greater​

The weight of 1 basket of fruits is 2 whole 4 by 5 kg. Find the weight of 25 such basket?​

A___is an ordered collection of objects

If a pizza is shared between 3 people what will be each share of the 3 people

What should be added to10 2/3 to get 15 1/6

Nth term of A. P. an=3+4n common difference is 7,4,1,3,

.Solution of the equation x + 3y = 13, 3x + y = 7

Answer :

Solution :

By elimination method :

Verification :

The difference between the two numbers is 2 and their product is 143 find the number

Number of line segment required to form a closed figure (a)2(b)3(c)4​

4x+x – Y/8= 17, x + 2y=y - 2/3-2​

MATICSEXERCISE 2.2you getfrom a number and multiply the result by21. If you subtractthe number?imming pool is 154 m. Its length is 2 m mon​

FACTORIZE x²-2x²-13x-10 using factor theorem Plz answer urgent!! I will mark you brainliest

(e) [40+ (19-38-7))​

(242×197)×581=242×(197×=​

pathagores therom deals with which geomatericl figure ?(a.triangle b. circle c. cone.d.rectanulgr.....tick the crroct option​

If x=2, and x=0 are roots of the polynomialf(x)=2^3-5^2+ ax+b. Find the value of a and b​

The depth of circular well is 5m water level is below2m from the upper face of the wall. Find the pressureat its base(g = 9.8mls2) (Hint : P =hdgand d = (5m ²m) =3m)]​

3. Factorise the following quadratic polynomby splitting the middle term:(1) x2 + 10x + 16 (2) x2 - 12x + 20(3) 6x2 + 19x + 10 (4) x2 + 14x +(5) x2-3x - 40 (6) 6x2 + 7x-(7) 15x2 + 7x-2(8) x2 - 4x - 7(9) x2 + 2x - 143 (10) 12x2 + 23​

Q(2). 1/(2x) + 1/(3y) = 2 1/(3x) + 1/(2y) = 13/6​

If (x-1) (x+2) and (x+3) are the factores of (x) ,then find (x)​

√2-8√2 please answer correct​

16 - 17 z + Z Square solve​

Factorise: (x^2-4x) (x^2-4x-1) -20​

Solve this plz i will mark u vari liest​

If the hight of two right circular cylinder bare in the ratio 3:4 and perimeter are in the ratio 1:2, then find the ratio of their volume​

A59 IVtransversal intersects twoparallel lines, thens which of the followingstatements are true.Each pairD6on same sideof corresponding angles is equalEach pair of alternate interior angles is1 Each pair ofof interior anglestransveral is supplementaryAllthe above.which two sidesofof​

For the finite A.p 8 ,15,22.....352 find its 12th term from end ​

The radius of circle is 3.5cm. area is 3.85 cm find the corrosponding arc​

Factories the the following x^+4x-32

2√28-√75-1/√3 step by step

1)Find the square root of 18.69 and correcdecimal places.

X²+3x+70=0How to solve this quadratic equation by factorisation method

the weight of a piece of stone when fully immersed in water is 18N and it displaces 4N of water . What is the weight of the stone in air

Weight in air( $W_a$ ) = Weight in water( $W_w$ ) + water DISPLACES

∴ Weight in air( $W_a$ ) = 18 N

And there is written 2 my mistake

The product of two numbers is 42 if one of them is 49/5,find the other

2)Find the value of 19681375

(a)(iv) In a right circular cylinder, if the length of radius is halved and height is doubled,volume of cylinder will be1

Find the HCF of the numbers 'a' and 'b' where:a = 4².x 5³ x 7²b = 2³. x 5 x 7

Remove 'too' from this sentence - "The rod is too hard to break". *The rod is not so hard to break.The rod is so hard to break.The rod is so hard that one cannot break it.Anyone can break this rod although it is so hard.

Solve the followings:Q(1). 3x – (y + 7)/11 + 2 = 10 2y + (x + 11)/7 = 10

A tree is 86m tall. 700cm of itis cut down.what is the present height of the tree

1/2 of 4/7 or 2/3 of 3/7

0. Find the median for the following dataVariate2326203028251816Frequency4613511489

1/2 of 4/7 or 2/7 of 3/7 which on is greater

The weight of 1 basket of fruits is 2 whole 4 by 5 kg. Find the weight of 25 such basket?

Number of line segment required to form a closed figure (a)2(b)3(c)4

4x+x – Y/8= 17, x + 2y=y - 2/3-2

MATICSEXERCISE 2.2you getfrom a number and multiply the result by21. If you subtractthe number?imming pool is 154 m. Its length is 2 m mon

(e) [40+ (19-38-7))

(242×197)×581=242×(197×=

pathagores therom deals with which geomatericl figure ?(a.triangle b. circle c. cone.d.rectanulgr.....tick the crroct option

If x=2, and x=0 are roots of the polynomialf(x)=2^3-5^2+ ax+b. Find the value of a and b

The depth of circular well is 5m water level is below2m from the upper face of the wall. Find the pressureat its base(g = 9.8mls2) (Hint : P =hdgand d = (5m ²m) =3m)]

3. Factorise the following quadratic polynomby splitting the middle term:(1) x2 + 10x + 16 (2) x2 - 12x + 20(3) 6x2 + 19x + 10 (4) x2 + 14x +(5) x2-3x - 40 (6) 6x2 + 7x-(7) 15x2 + 7x-2(8) x2 - 4x - 7(9) x2 + 2x - 143 (10) 12x2 + 23

Q(2). 1/(2x) + 1/(3y) = 2 1/(3x) + 1/(2y) = 13/6

If (x-1) (x+2) and (x+3) are the factores of (x) ,then find (x)

√2-8√2 please answer correct

16 - 17 z + Z Square solve

Factorise: (x^2-4x) (x^2-4x-1) -20

Solve this plz i will mark u vari liest

If the hight of two right circular cylinder bare in the ratio 3:4 and perimeter are in the ratio 1:2, then find the ratio of their volume

A59 IVtransversal intersects twoparallel lines, thens which of the followingstatements are true.Each pairD6on same sideof corresponding angles is equalEach pair of alternate interior angles is1 Each pair ofof interior anglestransveral is supplementaryAllthe above.which two sidesofof

For the finite A.p 8 ,15,22.....352 find its 12th term from end

The radius of circle is 3.5cm. area is 3.85 cm find the corrosponding arc