332354 + Interview Questions in Secondary School in Math Page 363 InterviewSolution

18101.	Find the value of the following1. 794319+431911
Answer» ANSWER: the answer is 388,710 Step-by-step explanation: 784319=341,201 431911=47,509

18101.

Find the value of the following1. 794319+431911

Answer»

ANSWER:

the answer is 388,710

Step-by-step explanation:

78*4319=341,201

4319*11=47,509

Discussion

18102.	Plz ans.................
Answer» Answer: 8.(89) 9.(VII) 10.(6) Step-by-step EXPLANATION: I hope I HELP you.

18102.

Plz ans.................

Answer»

Answer:

8.(89)

9.(VII)

10.(6)

Step-by-step EXPLANATION:

I hope I HELP you.

Discussion

18103.	Find the zeroes of quadratic polynomial:x^2+7x+10
Answer» <P>Step-by-step explanation: Let p(X) = x²+7x+10 We get zeroes of the polynomial p(x) we will take p(x) = 0 => x² + 7x + 10 = 0 => x² + 2X + 5X + 10 = 0 => x( x + 2 ) + 5( x + 2 ) = 0 => ( x + 2 )( x + 5 ) = 0 => x + 2 = 0 or x + 5 = 0 => x = -2 or x = -5 Therefore The zeroes of p(x) are -2 , -5 i ) Compare x²+7x+10 with ax²+bx+c we get a = 1 , b = 7 , c = 10 Sum of the zeroes = - 2 + ( -5 ) = -7 = ( -b/a ) ii ) Product of the zeroes = ( -2 )( -5 ) = 10 = c/a

18103.

Find the zeroes of quadratic polynomial:x^2+7x+10

Answer»

<P>Step-by-step explanation:

Let p(X) = x²+7x+10

We get zeroes of the polynomial

p(x) we will take p(x) = 0

=> x² + 7x + 10 = 0

=> x² + 2X + 5X + 10 = 0

=> x( x + 2 ) + 5( x + 2 ) = 0

=> ( x + 2 )( x + 5 ) = 0

=> x + 2 = 0 or x + 5 = 0

=> x = -2 or x = -5

Therefore

The zeroes of p(x) are -2 , -5

i ) Compare x²+7x+10 with ax²+bx+c

we get

a = 1 , b = 7 , c = 10

Sum of the zeroes = - 2 + ( -5 )

= -7

= ( -b/a )

ii ) Product of the zeroes

= ( -2 )( -5 )

= 10

= c/a

Discussion

18104.	7) Find the angle between hour hand & Minute hand in a clock. (2M)1) 35 past 1
Answer» ANSWER: yep Step-by-step EXPLANATION: its 180 bro.mark as BRAINLIEST

18104.

7) Find the angle between hour hand & Minute hand in a clock. (2M)1) 35 past 1

Answer»

ANSWER:

yep

Step-by-step EXPLANATION:

its 180 bro.mark as BRAINLIEST

Discussion

18105.	Can you show me the proof of pythogoras theorem
Answer» Answer: Pythagoras Theorem is an IMPORTANT topic in Maths, which explains the relation between the sides of a right-angled triangle. It is also sometimes called Pythagorean Theorem. The formula and PROOF of this theorem are explained here with examples. This theorem is basically used for the right-angled triangle and by which we can DERIVE base, PERPENDICULAR and hypotenuse formula. *HOPE* *THIS* *HELPS* U

18105.

Can you show me the proof of pythogoras theorem

Answer»

Answer:

Pythagoras Theorem is an IMPORTANT topic in Maths, which explains the relation between the sides of a right-angled triangle. It is also sometimes called Pythagorean Theorem. The formula and PROOF of this theorem are explained here with examples. This theorem is basically used for the right-angled triangle and by which we can DERIVE base, PERPENDICULAR and hypotenuse formula.

HOPE THIS HELPS U

Discussion

18106.	JEE MAIN & ADVANCEDLet f(x)= a.x" + a,x"-" + azx*-2 + ........+a,(, +0) if 4, +4 + ax +...+0,=0 then theroot of f(x) is1) 22) 13) -14)1 is
Answer» ANSWER: vjxigxigxigxogxotd y me త్ాగరాజస్వామి TD DRS t d text and DEFINITION TX TD rsurzrz rzurzgx

18106.

JEE MAIN & ADVANCEDLet f(x)= a.x" + a,x"-" + azx*-2 + ........+a,(, +0) if 4, +4 + ax +...+0,=0 then theroot of f(x) is1) 22) 13) -14)1 is

Answer»

ANSWER:

vjxigxigxigxogxotd y me త్ాగరాజస్వామి TD DRS t d text and DEFINITION TX TD rsurzrz rzurzgx

Discussion

18107.	Simplification (3^-1+4^-1)^-1
Answer» ANSWER: 123 is the answer of the QUESTION

18107.

Simplification (3^-1+4^-1)^-1

Answer»

ANSWER:

123 is the answer of the QUESTION

Discussion

18108.	The equivalent rational no of 23/41
Answer» 46 / 84 please MARK as BRAINLIST ANSWER FOLLOW me

18108.

The equivalent rational no of 23/41

Answer»

46 / 84

please MARK as BRAINLIST ANSWER FOLLOW me

Discussion

18109.	Plz answer fastimportant plz fast
Answer» ANSWER: answer is 50° Step-by-step EXPLANATION: SUM of all is EQUAL to 180° so, (x+20°)+(x+3°)+(x+7°)=180° 3x+30°=180° 3x=150° x=50°

18109.

Plz answer fastimportant plz fast

Answer»

ANSWER:

answer is 50°

Step-by-step EXPLANATION:

SUM of all is EQUAL to 180° so,

(x+20°)+(x+3°)+(x+7°)=180°

3x+30°=180°

3x=150°

x=50°

Discussion

18110.	Find the cube roots of the following numbers.216
Answer» ANSWER: The CUBE ROOT of this no.is 14.6969............

18110.

Find the cube roots of the following numbers.216

Answer»

ANSWER:

The CUBE ROOT of this no.is 14.6969............

Discussion

18111.	Plz tell me step by step solution
Answer» Answer: 1) VERTICALLY OPPOSITE ANGLES (4,2) and (1,3) as they are opposite to each other. 2) Adjacent Angles (1,3). 3)(1,2),(2,3),(3,4),(4,1)

18111.

Plz tell me step by step solution

Answer»

Answer:

1) VERTICALLY OPPOSITE ANGLES (4,2) and (1,3) as they are opposite to each other.

2) Adjacent Angles (1,3).

3)(1,2),(2,3),(3,4),(4,1)

Discussion

18112.	How many terms are there in the following polynomials?px+q+r
Answer» ANSWER: I THINK THREE TERMS........

18112.

How many terms are there in the following polynomials?px+q+r

Answer»

ANSWER:

I THINK THREE TERMS........

Discussion

18113.	X+y=5 &2x-3y=4 what will be answer
Answer» ANSWER:y=6/5 X=19/5 Step-by-step EXPLANATION:

18113.

X+y=5 &2x-3y=4 what will be answer

Answer»

ANSWER:y=6/5

X=19/5

Step-by-step EXPLANATION:

Discussion

18114.	Q2:Write first five multiples of:6*
Answer» 6,12,18,24,30 mark me BRAINLIEST

18114.

Q2:Write first five multiples of:6*

Answer»

6,12,18,24,30

mark me BRAINLIEST

Discussion

18115.	77- Re-order level isthanMinimum stock level.
Answer» REORDER LEVEL is MINIMUM than STOCK level

Discussion

18116.	Amit has worked on a project for 336 hours. In his project report, he needs to mention the number of working days so that he can get his salary as per the number of days. If he gets Rs. 100 per day, then how much money will he earn in total? please tell the answer of this along with solution and explanation
Answer» ANSWER: your ANSWERS in the PIC.

18116.

Amit has worked on a project for 336 hours. In his project report, he needs to mention the number of working days so that he can get his salary as per the number of days. If he gets Rs. 100 per day, then how much money will he earn in total? please tell the answer of this along with solution and explanation

Answer»

ANSWER:

your ANSWERS in the PIC.

Discussion

18117.	The vulgar fraction equivalent to 0.03
Answer» ANSWER: The VULGAR FRACTION EQUIVALENT to 0.03

18117.

The vulgar fraction equivalent to 0.03

Answer»

ANSWER:

The VULGAR FRACTION EQUIVALENT to 0.03

Discussion

18118.	Class 9:-There are some motorcycles and cars in a parking ground.The total number of vechicles is 21 and the total number of wheels is 60. Find the number of motorcycles and cars
Answer» ✬ Cars = 9 ✬ ✬ Motorcycles = 12 ✬ Step-by-step explanation: GIVEN: Total number of vehicles in park is 21. Total number of wheels in park is 60. To Find: What is the number of motorcycles and cars in park ? Solution: Let number of cars be X and number of bikes be y. Therefore, ➟ Cars + Motorcycles = Total vehicles ➟ x + y = 21 ➟ x = 21 – y ......(1) Now, We know that cars have 4 wheels and bikes have 2. Then, ➟ Car's wheel + Bike's wheels = Total wheels ➟ 4 $\times$ x + 2 $\times$ y = 60 ➟ 4x + 2y = 60......(2) [ Put the value of x in equation (2) from (1) ] $\implies{\rm }$ 4(21 – y) + 2y = 60 $\implies{\rm }$ 84 – 4y + 2y = 60 $\implies{\rm }$ 84 – 2y = 60 $\implies{\rm }$ 84 – 60 = 2y $\implies{\rm }$ 24 = 2y $\implies{\rm }$ 24/2 = y $\implies{\rm }$ 12 = y Hence, ➙ Number of motorcycles = y = 12 ➙ Number of cars = x = (21 – y) => (21 – 12) => 9

18118.

Class 9:-There are some motorcycles and cars in a parking ground.The total number of vechicles is 21 and the total number of wheels is 60. Find the number of motorcycles and cars

Answer»

✬ Cars = 9 ✬

✬ Motorcycles = 12 ✬

Step-by-step explanation:

GIVEN:

Total number of vehicles in park is 21.
Total number of wheels in park is 60.

To Find:

What is the number of motorcycles and cars in park ?

Solution: Let number of cars be X and number of bikes be y. Therefore,

➟ Cars + Motorcycles = Total vehicles

➟ x + y = 21

➟ x = 21 – y ......(1)

Now,

We know that cars have 4 wheels and bikes have 2.

Then,

➟ Car's wheel + Bike's wheels = Total wheels

➟ 4 $\times$ x + 2 $\times$ y = 60

➟ 4x + 2y = 60......(2)

[ Put the value of x in equation (2) from (1) ]

$\implies{\rm }$ 4(21 – y) + 2y = 60

$\implies{\rm }$ 84 – 4y + 2y = 60

$\implies{\rm }$ 84 – 2y = 60

$\implies{\rm }$ 84 – 60 = 2y

$\implies{\rm }$ 24 = 2y

$\implies{\rm }$ 24/2 = y

$\implies{\rm }$ 12 = y

Hence,

➙ Number of motorcycles = y = 12

➙ Number of cars = x = (21 – y)

=> (21 – 12)

=> 9

Discussion

18119.	Triangle ABC congruent triangle PQR AB=6cm,BC=4 cm and AC=8 cm.what is the perimeter of PQR
Answer» PQ= 8 CM RQ= 4CM Step-by-step explanation: ABC is congruent to PRQ SO , AB= PR (GIVEN) BC=RQ CA=PQ

18119.

Triangle ABC congruent triangle PQR AB=6cm,BC=4 cm and AC=8 cm.what is the perimeter of PQR

Answer»

PQ= 8 CM

RQ= 4CM

Step-by-step explanation:

ABC is congruent to PRQ

SO , AB= PR (GIVEN)

BC=RQ

CA=PQ

Discussion

18120.	Integrate 3cosx_4sinx/4cosx+2sinx
Answer» Answer:2sinxx Step-by-step EXPLANATION:

18120.

Integrate 3cosx_4sinx/4cosx+2sinx

Answer»

Answer:2sinxx

Step-by-step EXPLANATION:

Discussion

18121.	Lcm of 144 and204by prime factorisation
Answer» ANSWER: 22223*3 is FIRST QUESTION answer

18121.

Lcm of 144 and204by prime factorisation

Answer»

ANSWER:

2*2*2*2*3*3 is FIRST QUESTION answer

Discussion

18122.	If the co-ordinale of A is 6 and that of Bis-2 the d(AB) will be?
Answer» ANSWER: Chapter 2, Problems 6, 8, 9, 12. Chapter 3 ... Chapter 1. 6. Identify whether the following variables are numerical or categorical.. B) Petal area of rose. Step-by-step EXPLANATION: May this ANSWER will HELP you plz mark has brainliest plz

18122.

If the co-ordinale of A is 6 and that of Bis-2 the d(AB) will be?

Answer»

ANSWER:

Chapter 2, Problems 6, 8, 9, 12. Chapter 3 ... Chapter 1. 6. Identify whether the following variables are numerical or categorical.. B) Petal area of rose.

Step-by-step EXPLANATION:

May this ANSWER will HELP you plz mark has brainliest plz

Discussion

18123.	Pls tell me fast Write three fractions equivalent to -5 upon 7
Answer» Step-by-step EXPLANATION: GIVEN FRACTION = -5/7 Equivalent FRACTIONS are : -5/7×(2/2)=-10/14 (-5/7)×(3/3)=-15/21 (-5/7)×(4/4)=-20/28

18123.

Pls tell me fast Write three fractions equivalent to -5 upon 7

Answer»

Step-by-step EXPLANATION:

GIVEN FRACTION = -5/7

Equivalent FRACTIONS are :

-5/7×(2/2)=-10/14

(-5/7)×(3/3)=-15/21

(-5/7)×(4/4)=-20/28

Discussion

18124.	15. In a trapezium ABCD, seg AB \|\| seg DC,seg BDI seg AD, seg ACI seg BC, if AD = 15,BC = 15 and AB = 25. Find A(O ABCD).Note :1.By use pytha. theorem
Answer» *Answer: 192 sq.UNITS Step-by-step explanation: according according to PYTHAGORAS theoremtriangleABD AB²= AD² +BD² BD²=AB²-AD² BD=20 Now, Area of triangle ABD = √S(S-a) (S-b) (S- c) S= a+b+c/2S=30 Area of triangle =√S(S-a) (S-b) (S- c) Area of triangle = 150 sq . units DP = 300 /25 ......... (1/2BASE HEIGHT) DP=12 therefore height of trapezium is 12 Now according to pythagoras theoremIn triangle ADP AD²=AP²+DP² AP²=AD²- AP²=224-144 AP=9 therefore AP= QB=9 CD=PQ=7 area of trapezium =1/2 some of parallel sides * height =192 sq.units hence area of trapezium ABCD is 192 sq.units I hope it helped you *Please Please Please Mark Me As Brainlist Please*

18124.

15. In a trapezium ABCD, seg AB || seg DC,seg BDI seg AD, seg ACI seg BC, if AD = 15,BC = 15 and AB = 25. Find A(O ABCD).Note :1.By use pytha. theorem

Answer»

Answer:

192 sq.UNITS

Step-by-step explanation:

according according to PYTHAGORAS theoremtriangleABD

AB²= AD² +BD²

BD²=AB²-AD²

BD=20

Now,

Area of triangle ABD = √S(S-a) (S-b) (S- c)

S= a+b+c/2S=30

Area of triangle =√S(S-a) (S-b) (S- c)

Area of triangle = 150 sq . units

DP = 300 /25 ......... (1/2*BASE *HEIGHT)

DP=12

therefore height of trapezium is 12

Now according to pythagoras theoremIn triangle ADP

AD²=AP²+DP²

AP²=AD²-

AP²=224-144

AP=9

therefore AP= QB=9

CD=PQ=7

area of trapezium =1/2 * some of parallel sides * height =192 sq.units

hence area of trapezium ABCD is 192 sq.units

I hope it helped you

Please Please Please Mark Me As Brainlist Please

Discussion

18125.	2. Find principal:(i) S.I. = 250, Rate = 10%, Time = 2 years.(ii) S.I. = 2 4500, Rate = 15%, Time = 3 years.3. Find the rate of interest :(i) P=6,000, S.I. = 600, Time = 5 years.(ii) P= 37,500, S.I. = 600, Time = 4 years.
Answer» FOLLOW For More .... MARK it as BRAINLIEST ANSWER....

18125.

2. Find principal:(i) S.I. = 250, Rate = 10%, Time = 2 years.(ii) S.I. = 2 4500, Rate = 15%, Time = 3 years.3. Find the rate of interest :(i) P=6,000, S.I. = 600, Time = 5 years.(ii) P= 37,500, S.I. = 600, Time = 4 years.

Answer»

FOLLOW For More ....

MARK it as BRAINLIEST ANSWER....

Discussion

18126.	Write the information given in the picture in the form of an equation. Also find in thefollowing figure15 cm>11 cm
Answer» Step-by-step EXPLANATION: i *can't UNDERSTAND* *your* *QUESTION* *where* is the *PICTURE*

18126.

Write the information given in the picture in the form of an equation. Also find in thefollowing figure15 cm>11 cm

Answer»

Step-by-step EXPLANATION:

i can't UNDERSTAND your QUESTION where is the PICTURE

Discussion

18127.	3. Add the following integers.(a)(-37) and(-3) (b)(+5) and (-3) (c)(-7) and (+36)
Answer» a) (-37) + (-3) = -40 b) 5 + (-3) = 2 c) -7 + 36 = 29

18127.

3. Add the following integers.(a)(-37) and(-3) (b)(+5) and (-3) (c)(-7) and (+36)

Answer»

a) (-37) + (-3) = -40

b) 5 + (-3) = 2

c) -7 + 36 = 29

Discussion

18128.	Help me please . . . . . i need it quickly
Answer» your answer is giving attachment $\text{[math]}$ ❤❤ PLEASE MAKE a BRAIN LIST answer❤❤

18128.

Help me please . . . . . i need it quickly

Answer»

your answer is giving attachment

$\text{[math]}$ ❤❤ PLEASE MAKE a BRAIN LIST answer❤❤

Discussion

18129.	14.1.47 or 1.51 which decimal is greater
Answer» Answer:14.1.47 Step-by-step EXPLANATION:

18129.

14.1.47 or 1.51 which decimal is greater

Answer»

Answer:14.1.47

Step-by-step EXPLANATION:

Discussion

18130.	The set of numbers which are the multiples of 5 is....(a)a finite set(b)an infinite set (c) a singleton set (d) none of these
Answer» ANSWER: c Step-by-step EXPLANATION:

18130.

The set of numbers which are the multiples of 5 is....(a)a finite set(b)an infinite set (c) a singleton set (d) none of these

Answer»

ANSWER:

c

Step-by-step EXPLANATION:

Discussion

18131.	In a school there are 1600 sudent if 830 are taking online classes then find the percent of student who are taking online class
Answer» Answer: 51.875 Step-by-step EXPLANATION: TOTAL STUDENTS=1600 styudents TALKING in ONLINE class=830 percentage of students talking in online class=830/1600*100 =51.875

18131.

In a school there are 1600 sudent if 830 are taking online classes then find the percent of student who are taking online class

Answer»

Answer:

51.875

Step-by-step EXPLANATION:

TOTAL STUDENTS=1600

styudents TALKING in ONLINE class=830

percentage of students talking in online class=830/1600*100

=51.875

Discussion

18132.	Find the area of a quadrilateral pqrs in which angle qps =angle sqr=90 ,pq=12 cm, ps=9cm, qr=8cm and sr=17 cm
Answer» ANSWER... PLEASE MARK BRAINLIEST ANSWER

18132.

Find the area of a quadrilateral pqrs in which angle qps =angle sqr=90 ,pq=12 cm, ps=9cm, qr=8cm and sr=17 cm

Answer»

ANSWER...

PLEASE MARK BRAINLIEST ANSWER

Discussion

18133.	A letter is chosen from word intelligent what is the probability that it is a consonant
Answer» Answer: 7/11 is the PROBABILITY of CONSONANT.

18133.

A letter is chosen from word intelligent what is the probability that it is a consonant

Answer»

Answer:

7/11 is the PROBABILITY of CONSONANT.

Discussion

18134.	How to cut 0.63 by the volume of sphere
Answer» Answer: To calculate the VOLUME of a sphere, use the formula V = ⁴⁄₃πr³, where R is the RADIUS of the sphere. If you don't have the radius, you can FIND it by dividing the diameter by 2.

18134.

How to cut 0.63 by the volume of sphere

Answer»

Answer:

To calculate the VOLUME of a sphere, use the formula V = ⁴⁄₃πr³, where R is the RADIUS of the sphere. If you don't have the radius, you can FIND it by dividing the diameter by 2.

Discussion

18135.	1 HECTAIR IS EQUEL TO HOW MANY BIGHA
Answer» Answer: 968 sq.yd I HOPE this WOULD be HELPFUL for you...

18135.

1 HECTAIR IS EQUEL TO HOW MANY BIGHA

Answer»

Answer:

968 sq.yd

I HOPE this WOULD be HELPFUL for you...

Discussion

18136.	A few how many decimal s 1\250 ter min ates
Answer» Answer: The DECIMAL EXPANSION will help after 3 decimal places. I HOPE this will help you. THANK you. Please mark me as a brainlist answer.

18136.

A few how many decimal s 1\250 ter min ates

Answer»

Answer:

The DECIMAL EXPANSION will help after 3 decimal places.

I HOPE this will help you. THANK you. Please mark me as a brainlist answer.

Discussion

18137.	. In a year, a man earns ₹3,60,000 and paid ₹24,000 as incometax. Find the ratio of his(a) income to income tax.(b) income tax to income after paying income tax.
Answer» a) income: income tax 3,60,000:24,000 15:1 b) income tax: income after PAYING 24,000. : 3,56,000 6:89 HEY RATE ME AND GIVE ME A THANKS AND ALSO MARK ME THE BRAINLIEST!!

18137.

. In a year, a man earns ₹3,60,000 and paid ₹24,000 as incometax. Find the ratio of his(a) income to income tax.(b) income tax to income after paying income tax.

Answer»

a) income: income tax

3,60,000:24,000

15:1

b) income tax: income after PAYING

24,000. : 3,56,000

6:89

HEY RATE ME AND GIVE ME A THANKS AND ALSO MARK ME THE BRAINLIEST!!

Discussion

18138.	What is the range of 4,6,5,7,9,2,1,8
Answer» ANSWER: what does it MEANS the RANGE of 4,6,5,7,9,2,1,8

18138.

What is the range of 4,6,5,7,9,2,1,8

Answer»

ANSWER:

what does it MEANS the RANGE of 4,6,5,7,9,2,1,8

Discussion

18139.	If a=3 d=4 sn =406 find the value n
Answer» $\huge\underline\mathbb{\red S\pink{O}\purple{L} \blue{UT} \orange{I}\green{ON :}}$ ★ Given that, a = 3 d = 4 Sn = 406 ★ To find, N = ? By using sum of n terms of an AP... ☯ Sn = n/2 [ 2a + (n - 1)d ] ➡ 406 = n/2 [ 2(3) + (n - 1)4 ] ➡ 406 × 2 = n [ 6 + 4N - 4 ] ➡ 812 = n [ 2 + 4n ] ➡ 812 = 2n + 4n² ➡ 4n² + 2n - 812 = 0 ➡ 2[2n² + n - 406 ] = 0 ➡ 2n² + n - 406 = 0/2 ➡ 2n² + n - 406 = 0 ➡ 2n² + 29n - 28n - 406 = 0 ➡ n(2n + 29) - 14(2n + 29) = 0 ➡ (n - 14) (2n + 29) = 0 ➡ n - 14 = 0 ; 2n + 29 = 0 ➡ n = 0 + 14 ; 2n = 0 - 29 ➡ n = 14 ; 2n = - 29 ➡ n = 14 ; n = -29/2 Values of n can't be in fractions.So, n will be 14. ★ Verification : Substitute the value of n in the formula. ➡ S14 = 14/2 [ 2(3) + (14 - 1)(4) ] ➡ S14 = 7 [ 6 + 13(4) ] ➡ S14 = 7 [ 6 + 52 ] ➡ S14 = 7 [ 58 ] ➡ S14 = 406. Hence, it is verified... $\underline{\boxed{\bf{\purple{∴ The\;number\;of\;terms\;are\;“\;14\;”.}}}}$ Step-by-step EXPLANATION: $# PLEASE MARK ME AS BRAINLIEST✌✌✌$

18139.

If a=3 d=4 sn =406 find the value n

Answer»

$\huge\underline\mathbb{\red S\pink{O}\purple{L} \blue{UT} \orange{I}\green{ON :}}$

★ Given that,

a = 3
d = 4
Sn = 406

★ To find,

N = ?

By using sum of n terms of an AP...

☯ Sn = n/2 [ 2a + (n - 1)d ]

➡ 406 = n/2 [ 2(3) + (n - 1)4 ]

➡ 406 × 2 = n [ 6 + 4N - 4 ]

➡ 812 = n [ 2 + 4n ]

➡ 812 = 2n + 4n²

➡ 4n² + 2n - 812 = 0

➡ 2[2n² + n - 406 ] = 0

➡ 2n² + n - 406 = 0/2

➡ 2n² + n - 406 = 0

➡ 2n² + 29n - 28n - 406 = 0

➡ n(2n + 29) - 14(2n + 29) = 0

➡ (n - 14) (2n + 29) = 0

➡ n - 14 = 0 ; 2n + 29 = 0

➡ n = 0 + 14 ; 2n = 0 - 29

➡ n = 14 ; 2n = - 29

➡ n = 14 ; n = -29/2

Values of n can't be in fractions.So, n will be 14.

★ Verification :

Substitute the value of n in the formula.

➡ S14 = 14/2 [ 2(3) + (14 - 1)(4) ]

➡ S14 = 7 [ 6 + 13(4) ]

➡ S14 = 7 [ 6 + 52 ]

➡ S14 = 7 [ 58 ]

➡ S14 = 406.

Hence, it is verified...

$\underline{\boxed{\bf{\purple{∴ The\;number\;of\;terms\;are\;“\;14\;”.}}}}$

Step-by-step EXPLANATION:

$# PLEASE MARK ME AS BRAINLIEST✌✌✌$

Discussion

18140.	Most ksvk chick paid odissi disk ishak kaha course
Answer» ANSWER: Looks LIKE SOMEONE's superglued UR BALLSACK to ur thighs Go get a life.

18140.

Most ksvk chick paid odissi disk ishak kaha course

Answer»

ANSWER:

Looks LIKE SOMEONE's superglued UR BALLSACK to ur thighs

Go get a life.

Discussion

18141.	There are __ pertest square between 1 and 100
Answer» Step-by-step EXPLANATION: its your ANSWER PLEASE FOLLOW me

18141.

There are __ pertest square between 1 and 100

Answer»

Step-by-step EXPLANATION:

its your ANSWER PLEASE FOLLOW me

Discussion

18142.	If 3 cot A = 4 find 1-tan2a/1+tan2a= cos2a-sin2a or not
Answer» Answer: no 1-tan2a/1+tan2a=COS 2a-sin 2a is not EQUAL Step-by-step EXPLANATION: Cot A=4/3 tan A =3/4, CosA=4/5 ,SinA=3/5 tan (2A) = 2tana/1-tan^2a = 2×3/4/1-(3/4)^2 tan 2A= 24/7 Cos 2A= Cos^2 A-Sin^2 A=(4/5)^2-(3/5)^2 =16/25-9/25 = 7/25 Sin2A=2Sin A Cos A=2×3/5×4/5=24/25 substitute all the VALUES at LHS and RHS 1-24/7/1+24/7=7/25-24/25 -17/31= -17/25 therefore it is not equal

18142.

If 3 cot A = 4 find 1-tan2a/1+tan2a= cos2a-sin2a or not

Answer»

Answer:

no 1-tan2a/1+tan2a=COS 2a-sin 2a is not EQUAL

Step-by-step EXPLANATION:

Cot A=4/3

tan A =3/4, CosA=4/5 ,SinA=3/5

tan (2A) = 2tana/1-tan^2a = 2×3/4/1-(3/4)^2

tan 2A= 24/7

Cos 2A= Cos^2 A-Sin^2 A=(4/5)^2-(3/5)^2

=16/25-9/25

= 7/25

Sin2A=2Sin A Cos A=2×3/5×4/5=24/25

substitute all the VALUES at LHS and RHS

1-24/7/1+24/7=7/25-24/25

-17/31= -17/25

therefore it is not equal

Discussion

18143.	If y=e^sin-1x then find dy/dx...pls answer this asap !
Answer» ANSWER: Step-by-step EXPLANATION:

18143.

If y=e^sin-1x then find dy/dx...pls answer this asap !

Answer»

ANSWER:

Step-by-step EXPLANATION:

Discussion

18144.	Represent27/4 pictorially
Answer» Answer: 27/4 = 6.75 HOPE IT HELPS, PLEASE THANK, FOLLOW AND MARK AS BRAINLIEST.

18144.

Represent27/4 pictorially

Answer»

Answer:

27/4 = 6.75

HOPE IT HELPS,

PLEASE THANK, FOLLOW AND MARK AS BRAINLIEST.

Discussion

18145.	2+2÷2 explain the answer this question
Answer» Answer: 3 Step-by-step explanation: 2+2÷2 2+1 = 3

18145.

2+2÷2 explain the answer this question

Answer»

Answer:

3

Step-by-step explanation:

2+2÷2

2+1

= 3

Discussion

18146.	-7 upon 60 -3 upon 20
Answer» $\mathcal{\huge{\underline{\underline{\orange{Solution:-}}}}}$ it is = -7/60 × -3/20 = -21/120

18146.

-7 upon 60 -3 upon 20

Answer»

$\mathcal{\huge{\underline{\underline{\orange{Solution:-}}}}}$

it is = -7/60 × -3/20 = -21/120

Discussion

18147.	Find the area of rectangle park which is 12 2/5long and 2 3/4m breadth
Answer» ANSWER: $length = 12 \frac{2}{5} and \: breadth = 2 \frac{3}{4}$ $area = \frac{62}{5} \times \frac{11}{4} = \frac{341}{10} or \: 34.1 {m}^{2}$ Step-by-step EXPLANATION: HOPE YOU GOT IT....

18147.

Find the area of rectangle park which is 12 2/5long and 2 3/4m breadth

Answer»

ANSWER:

$length = 12 \frac{2}{5} and \: breadth = 2 \frac{3}{4}$

$area = \frac{62}{5} \times \frac{11}{4} = \frac{341}{10} or \: 34.1 {m}^{2}$

Step-by-step EXPLANATION:

HOPE YOU GOT IT....

Discussion

18148.	Please explain how to do these types of questions
Answer» ANSWER: Sukant tiwari follow me PLEASE after i do this question and MAKE me brainlist

18148.

Please explain how to do these types of questions

Answer»

ANSWER:

Sukant tiwari follow me PLEASE

after i do this question and MAKE me brainlist

Discussion

18149.	Find the quotient when 3 whole 1 by 4 is divided by 13 by 8
Answer» PLEASE MARK as BRAINLIEST ANSWER

18149.

Find the quotient when 3 whole 1 by 4 is divided by 13 by 8

Answer»

PLEASE MARK as BRAINLIEST ANSWER

Discussion

18150.	Give the first step you will use to separate the variable and then solve the equation a/5×3/5please reply fastly
Answer» Answer: your answer is 5A Step-by-step EXPLANATION: please MARK me as BRAINLIEST

18150.

Give the first step you will use to separate the variable and then solve the equation a/5×3/5please reply fastly

Answer»

Answer:

your answer is 5A

Step-by-step EXPLANATION:

please MARK me as BRAINLIEST

Discussion

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