98971 + Interview Questions in Primary School in Math

1.	Answer me fast it's urgent
Answer» ANSWER: I DONT KNOW the answer !!!!

1.

Answer me fast it's urgent

Answer»

ANSWER:

I DONT KNOW the answer !!!!

Discussion

2.	.)(Put appropriate sign .=)5
Answer» Answer: <,>.=5 is this OK PLEASE CORRECT your question

2.

.)(Put appropriate sign .=)5

Answer»

Answer:

<,>.=5 is this OK PLEASE CORRECT your question

Discussion

3.	Money loaned to them. Such amounts are called3) A triangle with no two sides equal is called atriangle.B) Match the following.
Answer» ANSWER: I. SCALENE Step-by-step EXPLANATION: SEE it Scalene has no SIDES equal

3.

Money loaned to them. Such amounts are called3) A triangle with no two sides equal is called atriangle.B) Match the following.

Answer»

ANSWER:

I. SCALENE

Step-by-step EXPLANATION:

SEE it Scalene has no SIDES equal

Discussion

4.	Find the area of rectangle Park which is 36 3 / 5 metre long and 16 2/3metre board
Answer» ANSWER: Since length rectangular park is =36 5 3 m and breadth of rectangular park is =16 3 2 m Area of the rectangular park=36 5 3 ×16 3 2 sq.m = 5 183 × 3 50 sq.m =61×10=610sq.m Step-by-step explanation: HOPE it HELPS you ☺️

4.

Find the area of rectangle Park which is 36 3 / 5 metre long and 16 2/3metre board

Answer»

ANSWER:

Since length rectangular park is =36

5

3

m

and breadth of rectangular park is =16

3

2

m

Area of the rectangular park=36

5

3

×16

3

2

sq.m

=

5

183

×

3

50

sq.m

=61×10=610sq.m

Step-by-step explanation:

HOPE it HELPS you ☺️

Discussion

5.	Of x-1/x=√5 find(i) x^2+1/x^2 (ii) x+1/x (iii) x^3+1/x^3
Answer» ANSWER: I) (√5)^2 +1/(√5)^2 6/5 I HOPE this would be HELPFUL

5.

Of x-1/x=√5 find(i) x^2+1/x^2 (ii) x+1/x (iii) x^3+1/x^3

Answer»

ANSWER:

I) (√5)^2 +1/(√5)^2

6/5

I HOPE this would be HELPFUL

Discussion

6.	1) Greatest three digit number isnriate signs>.=)
Answer» ANSWER: Greatest 3 digit NUMBER is 999

6.

1) Greatest three digit number isnriate signs>.=)

Answer»

ANSWER:

Greatest 3 digit NUMBER is 999

Discussion

7.	Simplify: 4p - 3-p + 5please tell me the answer with proper method please
Answer» ANSWER: 4p-3p+5 1p+5 it is the answer

7.

Simplify: 4p - 3-p + 5please tell me the answer with proper method please

Answer»

ANSWER:

4p-3p+5

1p+5

it is the answer

Discussion

8.	How to find height when area and base is given
Answer» Plug your values into the equation A=1/2bh and do the math. First multiply the base (B) by 1/2, then divide the AREA (A) by the PRODUCT. The resulting value will be the height of your triangle! Please MARK me as brainlist

8.

How to find height when area and base is given

Answer»

Plug your values into the equation A=1/2bh and do the math. First multiply the base (B) by 1/2, then divide the AREA (A) by the PRODUCT. The resulting value will be the height of your triangle!

Please MARK me as brainlist

Discussion

9.	Estimate the product and verify by calculation.(a) 225 x 8(b) 45 x 21(c) 48 x 73(d) 334 97(e) 602 x 45(g) 715 x 377Plz answer the question only if u know and I want correct answerIf u answer correctly I will mark it as the
Answer» ANSWER: A) 1800 B) 945 C) 3504 D) 32,398 E) 27090 G) 269555 Step-by-step EXPLANATION: HOPE it HELPS

9.

Estimate the product and verify by calculation.(a) 225 x 8(b) 45 x 21(c) 48 x 73(d) 334 97(e) 602 x 45(g) 715 x 377Plz answer the question only if u know and I want correct answerIf u answer correctly I will mark it as the

Answer»

ANSWER:

A) 1800

B) 945

C) 3504

D) 32,398

E) 27090

G) 269555

Step-by-step EXPLANATION:

HOPE it HELPS

Discussion

10.	Arrange the following in ascending order.-1/3,-4/3,-2/9,2/2
Answer» HERE IS YOUR ANSWER HOPE IT HELPS DEAR!!!

10.

Arrange the following in ascending order.-1/3,-4/3,-2/9,2/2

Answer»

HERE IS YOUR ANSWER

HOPE IT HELPS DEAR!!!

Discussion

11.	Plese ANSWER dont spam
Answer» Answer: The diagram GIVEN is a regular hexagon. A regular hexagon has 6 lines of symmetry. __________________________________ Please • Thank the Answer • Rate the Answer • Mark as Brainliest

11.

Plese ANSWER dont spam

Answer»

Answer:

The diagram GIVEN is a regular hexagon.

A regular hexagon has 6 lines of symmetry.

__________________________________

Please

• Thank the Answer

• Rate the Answer

• Mark as Brainliest

Discussion

12.	Multiplicative inverse of -4 explain on notebook
Answer» ANSWER: HOPE it HELPS you dear☺️☺️☺️

12.

Multiplicative inverse of -4 explain on notebook

Answer»

ANSWER:

HOPE it HELPS you dear☺️☺️☺️

Discussion

13.	Can anyone answer me 6 divided by 3 please see this picture and answer me
Answer» Answer: 2 us the answer MARK me as BRAINLIEST and thank my ans

13.

Can anyone answer me 6 divided by 3 please see this picture and answer me

Answer»

Answer:

2 us the answer MARK me as BRAINLIEST and thank my ans

Discussion

14.	256 students from your school have decided to participate in a state level skating competition.how many busses should the school management arrange for transport.if each bus can accommodate 42 students?
Answer» Answer: 07 Step-by-step EXPLANATION: Total NUMBER of students DIVIDE by capacity of each BUS = 256 divide by 42 = 07

14.

256 students from your school have decided to participate in a state level skating competition.how many busses should the school management arrange for transport.if each bus can accommodate 42 students?

Answer»

Answer:

07

Step-by-step EXPLANATION:

Total NUMBER of students DIVIDE by capacity of each BUS

=

256 divide by 42

=

07

Discussion

15.	True or false1. Additive inverse of an integer 8 is (-8) and additive inverse of (-8) is 82. for subtraction, we add the additive inverse of the integer that is being subtracted to the other integer3. (-10) + 3 = 10 - 3 4. 8 + (-7) - (-4) = 8 + 7 - 4
Answer» ANSWER: DIGITS digits digits digits digits digits digits digits digits digits

15.

True or false1. Additive inverse of an integer 8 is (-8) and additive inverse of (-8) is 82. for subtraction, we add the additive inverse of the integer that is being subtracted to the other integer3. (-10) + 3 = 10 - 3 4. 8 + (-7) - (-4) = 8 + 7 - 4

Answer»

ANSWER:

DIGITS digits digits digits digits digits digits digits digits digits

Discussion

16.	If 2/5x-2=5-3/5x then find the value of x.
Answer» Answer: Step-by-step explanation: To FIND x = ? when, \|x2+3x+5\|+x2+3x+5=0−−−−−−−(1)\|x2+3x+5\|+x2+3x+5=0−−−−−−−(1) Let, x2+3x+5=φx2+3x+5=φ Now, (1)(1)becomes, \|φ\|+φ=0\|φ\|+φ=0 We know that, \|φ\|=±φ\|φ\|=±φ This means, we have two scenarios, −φ+φ=0−−−−−−−−−−−−−−(2)−φ+φ=0−−−−−−−−−−−−−−(2) and, φ+φ=0−−−−−−−−−−−−−−−(3)φ+φ=0−−−−−−−−−−−−−−−(3) Now, Equation (2) gives, φ=φφ=φ This is rather insignificant. Equation (3) gives, 2φ=02φ=0 ⟹φ=0———————————−(4)⟹φ=0———————————−(4) Thus, x2+3x+5=0x2+3x+5=0from(4) Now, using the Quadratic FORMULA, x=−b±b2−4ac√2ax=−b±b2−4ac2a Here, a = 1, b = 3 and C = 5, substituting the VALUES we will get −3±i11√2 Hope it's help you Please MARK me in brain list answer

16.

If 2/5x-2=5-3/5x then find the value of x.

Answer»

Answer:

Step-by-step explanation:

To FIND x = ?

when,

|x2+3x+5|+x2+3x+5=0−−−−−−−(1)|x2+3x+5|+x2+3x+5=0−−−−−−−(1)

Let, x2+3x+5=φx2+3x+5=φ

Now, (1)(1)becomes,

|φ|+φ=0|φ|+φ=0

We know that,

|φ|=±φ|φ|=±φ

This means, we have two scenarios,

−φ+φ=0−−−−−−−−−−−−−−(2)−φ+φ=0−−−−−−−−−−−−−−(2)

and,

φ+φ=0−−−−−−−−−−−−−−−(3)φ+φ=0−−−−−−−−−−−−−−−(3)

Now,

Equation (2) gives, φ=φφ=φ

This is rather insignificant.

Equation (3) gives, 2φ=02φ=0

⟹φ=0———————————−(4)⟹φ=0———————————−(4)

Thus,

x2+3x+5=0x2+3x+5=0from(4)

Now, using the Quadratic FORMULA,

x=−b±b2−4ac√2ax=−b±b2−4ac2a

Here, a = 1, b = 3 and C = 5,

substituting the VALUES we will get −3±i11√2

Hope it's help you

Please MARK me in brain list answer

Discussion

17.	1. Simplify: 4p - 3-p + 5please tell me the answer
Answer» Step-by-step explanation: 3p+2 is the answer hope it'll HELP you PLEASE MAKE it

17.

1. Simplify: 4p - 3-p + 5please tell me the answer

Answer»

Step-by-step explanation:

3p+2 is the answer

hope it'll HELP you PLEASE MAKE it

Discussion

18.	1. 32×457= ___ 2 .457× ____
Answer» Answer: 1. 32×457=14,624 2. 457×32

18.

1. 32×457= _ 2 .457× __

Answer»

Answer:

1. 32×457=14,624

2. 457×32

Discussion

19.	How 7√2 came in displacement of i) and iii) part please tell this only
Answer» Answer: DISPLACEMENT is the SHORTEST DISTANCE therefore here displacement is from A to B whereas distance is from B to O and then O to A so now we have to find displacement that is AB in right ANGLED triangle AOB AO² + OB²= AB² 7²+7²=AB² 49+49=AB² 98=AB² 7 ROOT 2 = AB ( displacement) Step-by-step explanation: HOPE IT HELPS YOU

19.

How 7√2 came in displacement of i) and iii) part please tell this only

Answer»

Answer:

DISPLACEMENT is the SHORTEST DISTANCE

therefore here displacement is from A to B

whereas distance is from B to O and then O to A

so now we have to find displacement that is AB

in right ANGLED triangle AOB

AO² + OB²= AB²

7²+7²=AB²

49+49=AB²

98=AB²

7 ROOT 2 = AB ( displacement)

Step-by-step explanation:

HOPE IT HELPS YOU

Discussion

20.	pls guys send me the answer fast
Answer» Answer: This is a quadratic equation. so you can either apply quadratic formula or do by splitting. Splitting. 6x^ 2 + 9x - 4X -6 = 0 . taking common 3X ( 2X + 3) - 2 ( 2x +3) = 0 3x - 2 = 0 X = 2/3 and 2x+3 = 0 x = - 3 /2

20.

pls guys send me the answer fast

Answer»

Answer:

This is a quadratic equation.

so you can either apply quadratic formula or do by splitting.

Splitting.

6x^ 2 + 9x - 4X -6 = 0 .

taking common

3X ( 2X + 3) - 2 ( 2x +3) = 0

3x - 2 = 0

X = 2/3

and

2x+3 = 0

x = - 3 /2

Discussion

21.	Find the perimeter of the given figure
Answer» ANSWER: SORRY I don't KNOW Step-by-step EXPLANATION: Sorry

21.

Find the perimeter of the given figure

Answer»

ANSWER:

SORRY I don't KNOW

Step-by-step EXPLANATION:

Sorry

Discussion

22.	(/5 - /3) 2 simply
Answer» Step-by-step EXPLANATION: PLEASE WRITE FULL QUESTION

22.

(/5 - /3) 2 simply

Answer»

Step-by-step EXPLANATION:

PLEASE WRITE FULL QUESTION

Discussion

23.	Root 32 x root 108/root 48 step by step explanation please
Answer» We have the following: (i) 5 8 and 7 12 By CROSS multiplication, we GET: 5 × 12 = 60 and 7 × 8 = 56 However, 60 > 56 ∴ 5 8 > 7 12 (ii) 5 9 and 11 15 By cross multiplication, we get: 5 × 15 = 75 and 9 × 11 = 99 However, 75 < 99 ∴ 5 9 < 11 15

23.

Root 32 x root 108/root 48 step by step explanation please

Answer»

We have the following:

(i)

5

8

and

7

12

By CROSS multiplication, we GET:

5 × 12 = 60 and 7 × 8 = 56

However, 60 > 56

∴

5

8

>

7

12

(ii)

5

9

and

11

15

By cross multiplication, we get:

5 × 15 = 75 and 9 × 11 = 99

However, 75 < 99

∴

5

9

<

11

15

Discussion

24.	Simplify 5/7 divide by 2 on the side 4/7 - 11/14
Answer» We have the following: (i) 5 8 and 7 12 By cross multiplication, we GET: 5 × 12 = 60 and 7 × 8 = 56 However, 60 > 56 ∴ 5 8 > 7 12 (ii) 5 9 and 11 15 By cross multiplication, we get: 5 × 15 = 75 and 9 × 11 = 99 However, 75 < 99 ∴ 5 9 < 11 15

24.

Simplify 5/7 divide by 2 on the side 4/7 - 11/14

Answer»

We have the following:

(i)

5

8

and

7

12

By cross multiplication, we GET:

5 × 12 = 60 and 7 × 8 = 56

However, 60 > 56

∴

5

8

>

7

12

(ii)

5

9

and

11

15

By cross multiplication, we get:

5 × 15 = 75 and 9 × 11 = 99

However, 75 < 99

∴

5

9

<

11

15

Discussion

25.	Product of 11/13 and 13/12
Answer» Answer: 0.9167 Step-by-step explanation: 11/13 * 13 /12 13 will CUT 11/12 will REMAIN VALUE is 0.92667

25.

Product of 11/13 and 13/12

Answer»

Answer:

0.9167

Step-by-step explanation:

11/13 * 13 /12

13 will CUT

11/12 will REMAIN

VALUE is 0.92667

Discussion

26.	Write long expanded form of 7805
Answer» Answer: 7000+800+0+5 is the EXPANDED FORM of 7805

26.

Write long expanded form of 7805

Answer»

Answer:

7000+800+0+5 is the EXPANDED FORM of 7805

Discussion

27.	(i) find six rational numbers between 3/4 and 1/2(ii) find 15 rational numbers between -5 and -1
Answer» *1) SIX rational NUMBERS between 1/2 and 3/4 are 15/28, 16/28, 17/28, 18/ 28, 19/28* ✨❤️*hope* *HELPFUL* ❤️✨

27.

(i) find six rational numbers between 3/4 and 1/2(ii) find 15 rational numbers between -5 and -1

Answer»

1) SIX rational NUMBERS between 1/2 and 3/4 are 15/28, 16/28, 17/28, 18/ 28, 19/28

✨❤️hope HELPFUL ❤️✨

Discussion

28.	C 11o which of the followingternating and whichwing resten al numbers arenon-texta natingfollowin their demenal formarepeating0214IS 은18
Answer» ANSWER: I don't KNOW the RIGHT answer

28.

C 11o which of the followingternating and whichwing resten al numbers arenon-texta natingfollowin their demenal formarepeating0214IS 은18

Answer»

ANSWER:

I don't KNOW the RIGHT answer

Discussion

29.	{20÷(-10)}÷(-5) and 20 ÷ {(-10)÷(-5)} in full method
Answer» ANSWER: 0.4 Step-by-step EXPLANATION:

29.

{20÷(-10)}÷(-5) and 20 ÷ {(-10)÷(-5)} in full method

Answer»

ANSWER: 0.4

Step-by-step EXPLANATION:

Discussion

30.	The school has a rectangular flower garden that is 5m long area 12m wide one bag of fertilizer can cover 5 sq metres.how many bags will the school needed to buy to cover the entire garden?
Answer» Before, we find the answer. Let's find out how we can find the answer. In this question, we are asked to find how many BAGS are needed to buy to cover the entire the whole garden. So, to find that, we have to first find the Area of the RECTANGULAR flower Garden. Now, the Area of the Rectangle is : $\boxed { \rightarrow \sf Area \: of \: Rectangle = l \times b }$ Next, after finding the Area, we have to divide the number of metres. ONE bag can cover with the area. _________________________________ Given : Length = 5 m Breadth = 12 m One bag = 5 m To find : how many bags will the school need to buy to cover the entire garden Solution : ↪ Area of Rectangular Garden = l × b = 5 × 12 = 60 cm² THEREFORE, the Area of the Rectangular Garden is 60 cm². No of bags = 60 ÷ 5 = 12 Therefore, 12 bags of fertilizer can cover the entire garden.

30.

The school has a rectangular flower garden that is 5m long area 12m wide one bag of fertilizer can cover 5 sq metres.how many bags will the school needed to buy to cover the entire garden?

Answer»

Before, we find the answer. Let's find out how we can find the answer.

In this question, we are asked to find how many BAGS are needed to buy to cover the entire the whole garden.
So, to find that, we have to first find the Area of the RECTANGULAR flower Garden. Now, the Area of the Rectangle is :

$\boxed { \rightarrow \sf Area \: of \: Rectangle = l \times b }$

Next, after finding the Area, we have to divide the number of metres. ONE bag can cover with the area.

_________________________________

Given :

Length = 5 m
Breadth = 12 m
One bag = 5 m

To find :

how many bags will the school need to buy to cover the entire garden

Solution :

↪ Area of Rectangular Garden = l × b

= 5 × 12

= 60 cm²

THEREFORE, the Area of the Rectangular Garden is 60 cm².

No of bags = 60 ÷ 5

= 12

Therefore, 12 bags of fertilizer can cover the entire garden.

Discussion

31.	The sum of two rational 2 numbers is - 1/2If one of the numbers is 5/6find the other.
Answer» ANSWER: THEREFORE, the other NUMBER is -4/3. Step-by-step EXPLANATION: Answer is in the ATTACHMENT

31.

The sum of two rational 2 numbers is - 1/2If one of the numbers is 5/6find the other.

Answer»

ANSWER:

THEREFORE, the other NUMBER is -4/3.

Step-by-step EXPLANATION:

Answer is in the ATTACHMENT

Discussion

32.	PROVE THAT (1/ ROOT OF 2 + ROOT OF 3 - ROOT OF 5 ) - ( 1 / ROOT OF 2 _ ROOT OF 3 - ROOT OF 5 ) = 1 / ROOT OF 2 OR ROOT OF 2 / 2
Answer» ANSWER: Step-by-step EXPLANATION: Jgsbhja

32.

PROVE THAT (1/ ROOT OF 2 + ROOT OF 3 - ROOT OF 5 ) - ( 1 / ROOT OF 2 _ ROOT OF 3 - ROOT OF 5 ) = 1 / ROOT OF 2 OR ROOT OF 2 / 2

Answer»

ANSWER:

Step-by-step EXPLANATION:

Jgsbhja

Discussion

33.	Can anyone answer me
Answer» ANSWER: Department of Telecommunications, Ministry of Communications, is RESPONSIBLE for formulating developmental policies AIMED at ACCELERATING Step-by-step explanation:

33.

Can anyone answer me

Answer»

ANSWER:

Department of Telecommunications, Ministry of Communications, is RESPONSIBLE for formulating developmental policies AIMED at ACCELERATING

Step-by-step explanation:

Discussion

34.	Write number name and the expanded form 23,89,009
Answer» Answer: twenty THREE lakh eighty nine THOUSAND nine Step-by-step EXPLANATION: hope it's correct have a bangtastic day ahead DEAR

34.

Write number name and the expanded form 23,89,009

Answer»

Answer:

twenty THREE lakh eighty nine THOUSAND nine

Step-by-step EXPLANATION:

hope it's correct

have a bangtastic day ahead DEAR

Discussion

35.	Root 32 x root 108/root 48
Answer» Answer: 6 ROOT 2 Step-by-step EXPLANATION: by simple algebraic METHOD in decimal FORM 8.4852..

35.

Root 32 x root 108/root 48

Answer»

Answer:

6 ROOT 2

Step-by-step EXPLANATION:

by simple algebraic METHOD

in decimal FORM 8.4852..

Discussion

36.	Add + 125 to - 1350
Answer» ANSWER: 1225 is the RIGHT answer

36.

Add + 125 to - 1350

Answer»

ANSWER:

1225 is the RIGHT answer

Discussion

37.	Multiply (5x-4ypower2) by (-3x).
Answer» Step-by-step EXPLANATION: tdhvmthvdnffhvmdhcnfbn dhvnfvjmgfhmvffbjtdhvngbmftfhvmthvmjhthfhnvtdhvfhvnhtdvntdvjthjtdjvrhcttrhjvtrhjvrhvthvntjbktjbtfhnthnfhntdhvfnhfhvtdhvtvjsthckehjcetvdhktehvkfhkvtydkvt

37.

Multiply (5x-4ypower2) by (-3x).

Answer»

Step-by-step EXPLANATION:

tdhvmthvdnffhvmdhcnfbn dhvnfvjmgfhmvffbjtdhvngbmftfhvmthvmjhthfhnvtdhvfhvnhtdvntdvjthjtdjvrhcttrhjvtrhjvrhvthvntjbktjbtfhnthnfhntdhvfnhfhvtdhvtvjsthckehjcetvdhktehvkfhkvtydkvt

Discussion

38.	Solve it.a) 2x^2+ 3x+1 = 0
Answer» Step-by-step EXPLANATION: = − ± 2 − 4 √ 2 Once in STANDARD form, identify a, b and c from the ORIGINAL EQUATION and plug them into the quadratic formula. 2 2 + 3 + 1 = 0 = 2 = 3 = 1 = − 3 ± 3 2 −

38.

Solve it.a) 2x^2+ 3x+1 = 0

Answer»

Step-by-step EXPLANATION:

=

−

±

2

−

4

√

2

Once in STANDARD form, identify a, b and c from the ORIGINAL EQUATION and plug them into the quadratic formula.

2

+

3

+

1

=

0

=

2

=

3

=

1

=

−

3

±

3

2

−

Discussion

39.	X³+x²+1 by x+1 divide
Answer» $\mathfrak \blue{ \frac{ {x}^{3} + {x}^{2} + 1 }{x + 1} } \\ Divide x3−x2+x−1 by x−1 x−1 )x3−x2+x−1( x2+1 −(x3−x2) +x−1 −(x−1) 0$ HOPE my ANSWER will HELP you

39.

X³+x²+1 by x+1 divide

Answer»

$\mathfrak \blue{ \frac{ {x}^{3} + {x}^{2} + 1 }{x + 1} } \\ Divide x3−x2+x−1 by x−1 x−1 )x3−x2+x−1( x2+1 −(x3−x2) +x−1 −(x−1) 0$

HOPE my ANSWER will HELP you

Discussion

40.	२77
Answer» Answer: 2/7 Step-by-step explanation: ROOT 2 will be DIVIDED and CUT them 2/7 will ne remain

40.

२77

Answer»

Answer:

2/7

Step-by-step explanation:

ROOT 2 will be DIVIDED and CUT them 2/7 will ne remain

Discussion

41.	Evaluate 5+(-5)+5+(-5)+5+(-5)+________ If the no of terms are a. 101 b. 102 c. 1000 d. 1051
Answer» ANSWER: Step-by-step EXPLANATION: clue 5+(-5)=0 here there are even NUMBER of 5's so product will be 0 if ODD number of 5's then answer is -5 hence,101= -5 102= 0 1000= 0

41.

Evaluate 5+(-5)+5+(-5)+5+(-5)+________ If the no of terms are a. 101 b. 102 c. 1000 d. 1051

Answer»

ANSWER:

Step-by-step EXPLANATION:

clue

5+(-5)=0

here there are even NUMBER of 5's so product will be 0

if ODD number of 5's then answer is -5

hence,101= -5

102= 0

1000= 0

Discussion

42.	The product of two rational numbers is 12/5, if one of them is -6/7, find the other
Answer» I HOPE you UNDERSTAND THANKS

Discussion

43.	Find the area of the following shapes
Answer» Answer: 18 33 Hope it HELPS you

43.

Find the area of the following shapes

Answer»

Answer:

18

33

Hope it HELPS you

Discussion

44.	When we multiply a rational number with 1 we get same number. STATE TRUE OR FALS
Answer» ANSWER: TRUE is the CORRECT answer.

44.

When we multiply a rational number with 1 we get same number. STATE TRUE OR FALS

Answer»

ANSWER:

TRUE is the CORRECT answer.

Discussion

45.	Solve :x-1/6 + x-2/4 = 2(1/3) ans immediately
Answer» HOPE this HELP THANK you

45.

Solve :x-1/6 + x-2/4 = 2(1/3) ans immediately

Answer»

HOPE this HELP THANK you

Discussion

46.	Find the shortest distance between the lines⃗ = 3i+ 2j− 4k + (i+ 2j+ 2k) ⃗ = 5i− 2j+ (3i+ 2j+ 6k)If the lines intersect find their point of intersection
Answer» We have a1 = 3i + 2j − 4k b1 = i + 2j+ 2k a2 = 5i − 2j b2 = 3i + 2j + 6k a2 − a1= 2I − 4j + 4k b1 × b2 = (12 − 4)i − (6 − 6)j + (2 − 6)k b1 × b2 = 8i+ 0j − 4k = 8i − 4k ∵ (b1× b2). (a2 − a1 ) = 16 − 16 = 0 ∴ The lines are intersecting and the shortest distance between the lines is 0. Now for point of intersection 3i + 2j − 4k + (i + 2j + 2k) = 5i− 2j+ (3i + 2j + 6k) ⟹ 3 + λ = 5 + 3μ_____(1) 2 + 2λ = −2 + 2μ______(2) −4 + 2λ = 6μ_________(3) Solving (1) AD (2) we get, μ = −2 , λ = −4 Substituting in equation of line we get R = 5i − 2j + (−2)(3i + 2j − 6k) = − i − 6j − 12k Point of intersection is (−1, −6, −12).

46.

Find the shortest distance between the lines⃗ = 3i+ 2j− 4k + (i+ 2j+ 2k) ⃗ = 5i− 2j+ (3i+ 2j+ 6k)If the lines intersect find their point of intersection

Answer»

We have

a1 = 3i + 2j − 4k

b1 = i + 2j+ 2k

a2 = 5i − 2j

b2 = 3i + 2j + 6k

a2 − a1= 2I − 4j + 4k

b1 × b2 = (12 − 4)i − (6 − 6)j + (2 − 6)k

b1 × b2 = 8i+ 0j − 4k = 8i − 4k

∵ (b1× b2). (a2 − a1 ) = 16 − 16 = 0

∴ The lines are intersecting and the shortest distance between the lines is 0.

Now for point of intersection

3i + 2j − 4k + (i + 2j + 2k) = 5i− 2j+ (3i + 2j + 6k)

⟹ 3 + λ = 5 + 3μ_____(1)

2 + 2λ = −2 + 2μ______(2)

−4 + 2λ = 6μ_________(3)

Solving (1) AD (2) we get, μ = −2 , λ = −4

Substituting in equation of line we get

R = 5i − 2j + (−2)(3i + 2j − 6k) = − i − 6j − 12k

Point of intersection is (−1, −6, −12).

Discussion

47.	1. 25 bags of wheat each weighing 40 kg cost 2750. Find the cost of 35 bags of wheat, if each weighing 50 kg.2.A bus consumes 25 litres of diesel in covering a distance of 90 kilometers. How much diesel is needed to cover 288 kilometers?3 .The first , third and fourth terms of a proportion are 6 ,10 and 25 respectively. Find its second term.
Answer» Step-by-step explanation: i did not GOT 3rd ONE I hope these TWO can HELP you

47.

1. 25 bags of wheat each weighing 40 kg cost 2750. Find the cost of 35 bags of wheat, if each weighing 50 kg.2.A bus consumes 25 litres of diesel in covering a distance of 90 kilometers. How much diesel is needed to cover 288 kilometers?3 .The first , third and fourth terms of a proportion are 6 ,10 and 25 respectively. Find its second term.

Answer»

Step-by-step explanation:

i did not GOT 3rd ONE

I hope these TWO can HELP you

Discussion

48.	3. \| 25 minutes past 2 in the afternoon is show as inthe 24 hour clock
Answer» Answer: 14:25 Step-by-step explanation: so SEE, you want 2:25 pm writen write? so how to do that after 12 pm the TIME is one but in the TWENTY four hour system it is 13:00 pm 13-12= 1 write so 21-12=9 so if you want 2:25 you can simply write 14:25 14-12= 2 that is how you write I will give you a question in 24 hour system you answer it, ok? what is 10 pm if writen in 24 hour system

48.

3. | 25 minutes past 2 in the afternoon is show as inthe 24 hour clock

Answer»

Answer:

14:25

Step-by-step explanation:

so SEE, you want 2:25 pm writen write? so how to do that after 12 pm the TIME is one but in the TWENTY four hour system it is 13:00 pm 13-12= 1 write so 21-12=9 so if you want 2:25 you can simply write 14:25 14-12= 2 that is how you write I will give you a question in 24 hour system you answer it, ok?

what is 10 pm if writen in 24 hour system

Discussion

49.	•→A circle field of diameter 42 m needs to be cleaned. if the cost of cleaning the field is Rs. 2.35 per m², find the cost of cleaning the field?
Answer» ${\orange{\bigstar}} \ {\underline{\green{\textsf{\textbf{Given :-}}}}}$ Diameter of the CIRCLE = 42 m Cost of cleaning per m² = ₹2.35 ${\blue{\bigstar}} \ {\underline{\pink{\textsf{\textbf{To Find :-}}}}}$ Cost of cleaning the WHOLE field ${\red{\bigstar}} \ {\underline{\purple{\textsf{\textbf{Formula Used :-}}}}}$ ${\boxed{\green{\textsf{\textbf{Area of a circle = }}} {\blue{\sf{\pi r^2}}}}}$ where, r = Radius ${\sf{\pi = \dfrac{22}{7}}}$ ${\orange{\bigstar}} \ {\underline{\blue{\textsf{\textbf{Solution :-}}}}}$ $Radius = {\sf{\dfrac{Diameter}{2}}}$ $\longmapsto {\sf{\dfrac{42}{2}}}$ $\longmapsto {\sf{21 \ m}}$ ${\pink{\textsf{\textbf{Radius = 21 m}}}}$ ACCORDING to the question by using the formula of Area of a Circle, we get, $\dashrightarrow \ {\green{\sf{Area \ of \ circular \ field = (\pi \times 21^2) \ m^2}}}$ SOLVING the above EQUATION, $: \ \Longrightarrow \ {\sf{ \bigg ( \dfrac{22}{7} \times 21^2 \bigg ) \ m^2}}$ $: \ \Longrightarrow \ {\sf{ \bigg ( \dfrac{22}{7} \times 21 \times 21 \bigg ) \ m^2}}$ $: \ \Longrightarrow \ {\sf{ \bigg ( \dfrac{22}{7} \times 441 \bigg ) \ m^2}}$ $: \ \Longrightarrow \ {\sf{ \bigg ( \dfrac{22}{{\cancel{7}}^{ \ 1}} \times {\cancel{441}}^{ \ 63} \bigg ) \ m^2}}$ $: \ \Longrightarrow \ {\sf{(22 \times 63) \ m^2}}$ $: \ \Longrightarrow \ {\sf{1,386 \ m^2}}$ ${\blue{\textsf{\textbf{Area of the circular field = 1,386 sq. m.}}}}$ Cost of cleaning the field = ₹ (1,386 × 2.35) $: \ \Longrightarrow \ {\sf{\purple{Rs. \ 3257.1}}}$ ${\boxed{\orange{\textsf{\textbf{Cost of cleaning the field is Rs. 3257.1}}}}}$

49.

•→A circle field of diameter 42 m needs to be cleaned. if the cost of cleaning the field is Rs. 2.35 per m², find the cost of cleaning the field?

Answer»

${\orange{\bigstar}} \ {\underline{\green{\textsf{\textbf{Given :-}}}}}$

Diameter of the CIRCLE = 42 m

Cost of cleaning per m² = ₹2.35

${\blue{\bigstar}} \ {\underline{\pink{\textsf{\textbf{To Find :-}}}}}$

Cost of cleaning the WHOLE field

${\red{\bigstar}} \ {\underline{\purple{\textsf{\textbf{Formula Used :-}}}}}$

${\boxed{\green{\textsf{\textbf{Area of a circle = }}} {\blue{\sf{\pi r^2}}}}}$

where,

r = Radius

${\sf{\pi = \dfrac{22}{7}}}$

${\orange{\bigstar}} \ {\underline{\blue{\textsf{\textbf{Solution :-}}}}}$

$Radius = {\sf{\dfrac{Diameter}{2}}}$

$\longmapsto {\sf{\dfrac{42}{2}}}$

$\longmapsto {\sf{21 \ m}}$

${\pink{\textsf{\textbf{Radius = 21 m}}}}$

ACCORDING to the question by using the formula of Area of a Circle, we get,

$\dashrightarrow \ {\green{\sf{Area \ of \ circular \ field = (\pi \times 21^2) \ m^2}}}$

SOLVING the above EQUATION,

$: \ \Longrightarrow \ {\sf{ \bigg ( \dfrac{22}{7} \times 21^2 \bigg ) \ m^2}}$

$: \ \Longrightarrow \ {\sf{ \bigg ( \dfrac{22}{7} \times 21 \times 21 \bigg ) \ m^2}}$

$: \ \Longrightarrow \ {\sf{ \bigg ( \dfrac{22}{7} \times 441 \bigg ) \ m^2}}$

$: \ \Longrightarrow \ {\sf{ \bigg ( \dfrac{22}{{\cancel{7}}^{ \ 1}} \times {\cancel{441}}^{ \ 63} \bigg ) \ m^2}}$

$: \ \Longrightarrow \ {\sf{(22 \times 63) \ m^2}}$

$: \ \Longrightarrow \ {\sf{1,386 \ m^2}}$

${\blue{\textsf{\textbf{Area of the circular field = 1,386 sq. m.}}}}$

Cost of cleaning the field = ₹ (1,386 × 2.35)

$: \ \Longrightarrow \ {\sf{\purple{Rs. \ 3257.1}}}$

${\boxed{\orange{\textsf{\textbf{Cost of cleaning the field is Rs. 3257.1}}}}}$

Discussion

50.	Find the value of - 3/5+5/3+7/10
Answer» $\huge\mathcal\colorbox{Lavender}{Answer:-}$ $\frac{ - 3}{5} + \frac{5}{3} + \frac{7}{10}$ $\frac{ - 18 + 50 + 21}{30}$ $\frac{53}{30} \: \: \: or \: \: \: 1 \frac{23}{30} \: \: \: or \: \: \: 1.76666..$ KEEP SPREADING LOVE,keep spreading POSITIVITY :)

50.

Find the value of - 3/5+5/3+7/10

Answer»

$\huge\mathcal\colorbox{Lavender}{Answer:-}$

$\frac{ - 3}{5} + \frac{5}{3} + \frac{7}{10}$

$\frac{ - 18 + 50 + 21}{30}$

$\frac{53}{30} \: \: \: or \: \: \: 1 \frac{23}{30} \: \: \: or \: \: \: 1.76666..$

KEEP SPREADING LOVE,keep spreading POSITIVITY :)

Discussion

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