332354 + Interview Questions in Secondary School in Math

1.	Evaluate (−41) ÷ [(−40) + (−1)]
Answer» *SOLUTION* *BODMAS* *RULE* =) (-41)÷[(-40)+(-1)] =) (-41)÷[-40-1] =) (-41)÷ [-41] =) 1 *hope* it *HELPS*

1.

Evaluate (−41) ÷ [(−40) + (−1)]

Answer»

SOLUTION

BODMAS RULE

=) (-41)÷[(-40)+(-1)]

=) (-41)÷[-40-1]

=) (-41)÷ [-41]

=) 1

hope it HELPS

Discussion

2.	the radio of Kapil and renu ages is 4 : 5. after 5 years, the sun of their ages is 46 years. find their present ages.
Answer» Step-by-step explanation: HOPE U UNDERSTAND...mark as brainliest PLEASE

2.

the radio of Kapil and renu ages is 4 : 5. after 5 years, the sun of their ages is 46 years. find their present ages.

Answer»

Step-by-step explanation:

HOPE U UNDERSTAND...mark as brainliest PLEASE

Discussion

3.	How to find rational numbers between two rational numbers through an activity?
Answer» ANSWER: we can find RATIONAL numbers Between TWO rational numbers by using the FORMULA : $a + b \times \frac{1}{2}$

3.

How to find rational numbers between two rational numbers through an activity?

Answer»

ANSWER:

we can find RATIONAL numbers Between TWO rational numbers by using the FORMULA :

$a + b \times \frac{1}{2}$

Discussion

4.	If the standard deviation of a population is 9, the population variance is
Answer» ANSWER: I have no EXPLANATION for this Step-by-step explanation: NOPE..... Nope.....

4.

If the standard deviation of a population is 9, the population variance is

Answer»

ANSWER:

I have no EXPLANATION for this

Step-by-step explanation:

NOPE.....

Nope.....

Discussion

5.	If the perimeter of an equilateral triangle is 12 if each side is doubled
Answer» ANSWER: What is the PERIMETER of an EQUILATERAL triangle ? let us consider the SIDE of the triangle as a. then, a+a+a = perimeter of the equilateral triangle 3a = perimeter of the equilateral triangle Given each side is doubled according to the question, 2×3a = 12 6a = 12 a = 12/6 a = 2 each side is 2 perimeter of original triangle = 2+2+2 or 12/a perimeter of original triangle = 6 units Extra information: AREA of an equilateral triangle = $\frac{\sqrt{3} }{4} a^{2}$ height of an equilateral triangle = $\frac{\sqrt{3} }{2} a$

5.

If the perimeter of an equilateral triangle is 12 if each side is doubled

Answer»

ANSWER:

What is the PERIMETER of an EQUILATERAL triangle ?

let us consider the SIDE of the triangle as a.

then,

a+a+a = perimeter of the equilateral triangle

3a = perimeter of the equilateral triangle

Given

each side is doubled

according to the question,

2×3a = 12

6a = 12

a = 12/6

a = 2

each side is 2

perimeter of original triangle = 2+2+2 or 12/a

perimeter of original triangle = 6 units

Extra information:

AREA of an equilateral triangle = $\frac{\sqrt{3} }{4} a^{2}$
height of an equilateral triangle = $\frac{\sqrt{3} }{2} a$

Discussion

6.	If the logx 16 = 0.8, then what is the value of x?a. 4b. 2c. 32d. 16
Answer» Step-by-step EXPLANATION: x^0.8=16 correct ANSWER is 32.

6.

If the logx 16 = 0.8, then what is the value of x?a. 4b. 2c. 32d. 16

Answer»

Step-by-step EXPLANATION:

x^0.8=16

correct ANSWER is 32.

Discussion

7.	please solve question 1 ,7 , 8 ,9 , it is sooo ugent dooo it fast ( 1 question toh jaroor karnaa please )
Answer» Answer: Step-by-step explanation: 7) ROOT 2 x square -3x- 2root 2=0 is in the form- ax square+bx+c=0 multiply root 2X square and 2root2 we GET 4 (a*c) root 2 x square -4x+x- 2root 2=0 √ 2 x(x-2√2) + 1(x-2√2)=0 (√2x+1) (x-2√2)=0 x=2√2 and -1/√2 roots of the above EQUATION are 2√2 and -1/√2

7.

please solve question 1 ,7 , 8 ,9 , it is sooo ugent dooo it fast ( 1 question toh jaroor karnaa please )

Answer»

Answer:

Step-by-step explanation:

7) ROOT 2 x square -3x- 2root 2=0 is in the form-

ax square+bx+c=0

multiply root 2X square and 2root2 we GET 4 (a*c)

root 2 x square -4x+x- 2root 2=0

√ 2 x(x-2√2) + 1(x-2√2)=0

(√2x+1) (x-2√2)=0

x=2√2 and -1/√2

roots of the above EQUATION are 2√2 and -1/√2

Discussion

8.	1/3.5+1/2.5+1/3.7+1/4.9+......=
Answer» ANSWER: 1.1600661886 is the answer....

8.

1/3.5+1/2.5+1/3.7+1/4.9+......=

Answer»

ANSWER:

1.1600661886 is the answer....

Discussion

9.	Write the following real number in descending order √2,3.5, √10, - 5/√2, 5/2√3
Answer» ANSWER: Step-by-step EXPLANATION: BRAINLIEST BRAINLIEST BRAINLIEST BRAINLIEST BRAINLIEST BRAINLIEST BRAINLIEST BRAINLIEST BRAINLIEST

9.

Write the following real number in descending order √2,3.5, √10, - 5/√2, 5/2√3

Answer»

ANSWER:

Step-by-step EXPLANATION:

BRAINLIEST BRAINLIEST BRAINLIEST BRAINLIEST BRAINLIEST BRAINLIEST BRAINLIEST BRAINLIEST BRAINLIEST

Discussion

10.	HCF of 26, 38, 42 find answer
Answer» ANSWER: this is the answer for your QUESTION if you like it PLEASE make my answer as branliest THANKS....... Thanks....... Thanks........

10.

HCF of 26, 38, 42 find answer

Answer»

ANSWER:

this is the answer for your QUESTION if you like it PLEASE make my answer as branliest

THANKS.......

Thanks.......

Thanks........

Discussion

11.	In a pond there were 98012 tadpoles. 7642 of them changed into frogs on Monday, 1205 on Tuesday, 5435 on Wednesday, 6743 on Thursday, 500 on Friday. By Sunday all the tadpoles had turned into frogs. If 5467 more tadpoles turned into frogs on Saturday than on Sunday, how many tadpoles changed into frogs on Sunday? How many of them changed into frogs on Saturday? How many tadpoles changed into frogs on the days beginning with the letter T? How many frogs were there in the ponds at 12 o'clock midnight on Wednesday?
Answer» 98012-7642=90370 90370-5435=84935 84935-500=84435 84435-84435=0 a)TOS(Tadpoles on SATURDAY)-5467= TOSU(Tadpoles on Sunday) TOSU+5467=TOS 5467 X 2= 10934 84435-10934=73501 73501-10934=62567 62567-10934=51633 51633 is the answer b)51633+5467= 57100 57100 is the answer c) Tuesday+Thursday=1205+6743=7948 7948 is the answer. d)Monday+Tuesday+Wednesday=7642+1205+5435=14282 The answer is 14282 Please MARK as the brainliest answer.

Discussion

12.	Mean and median of first five natural number are same?
Answer» YES BRO. mean=1+2+3+4+5/5=3 median=3

12.

Mean and median of first five natural number are same?

Answer»

YES BRO. mean=1+2+3+4+5/5=3

median=3

Discussion

13.	89400502 in international system
Answer» Answer: The International SYSTEM of PLACE VALUE for 89400502 is 89,400,502

13.

89400502 in international system

Answer»

Answer:

The International SYSTEM of PLACE VALUE for 89400502 is 89,400,502

Discussion

14.	Solve the equations by cross multiplication method 3x-2y=0 and 2x+y-8=0
Answer» ANSWER: Step-by-step EXPLANATION: HOPE it HELPS

14.

Solve the equations by cross multiplication method 3x-2y=0 and 2x+y-8=0

Answer»

ANSWER:

Step-by-step EXPLANATION:

HOPE it HELPS

Discussion

15.	The perimeter of a rectangular garden is 400 m. If the length and breadth are in the ratio of 3:2 then find the area of the garden?
Answer» $\underline{\underline{\mathfrak{\red{Answer:-}}}}$ area of rectangle = 9600 sq.m. $\underline{\underline{\mathfrak{\red{Explanation:-}}}}$ Given: Perimeter of rectangle = 400m Ratio of length and breadth = 3:2 $\\$ To find: Area of triangle $\\$ Solution: Let, The length of the rectangle (l)= "3x" The breadth of the triangle (b)= "2X" $\boxed{\pink{Perimeter\: of \: rectangle = 2(l+b)}}$ $\\$ Therefore, 2(l+b) = 400 2(3x+2x) = 400 2(5x) = 400 10x = 400 x = $\dfrac{400}{10}$ x = 40 _____________________ length (l) = 3x l = 3(40) l = 120m $\\$ breadth (b) = 2x b = 2(40) b = 80m _____________________ Now, $\boxed{\pink{area\: of \: rectangle = l \times b}}$ area of rectangle = 120 × 80 = 9600 sq.m. $\\$ Hence, area of rectangle = 9600 sq.m.

15.

The perimeter of a rectangular garden is 400 m. If the length and breadth are in the ratio of 3:2 then find the area of the garden?

Answer»

$\underline{\underline{\mathfrak{\red{Answer:-}}}}$

area of rectangle = 9600 sq.m.

$\underline{\underline{\mathfrak{\red{Explanation:-}}}}$

Given:

Perimeter of rectangle = 400m

Ratio of length and breadth = 3:2

$\\$

To find:

Area of triangle

$\\$

Solution:

Let,

The length of the rectangle (l)= "3x"

The breadth of the triangle (b)= "2X"

$\boxed{\pink{Perimeter\: of \: rectangle = 2(l+b)}}$

$\\$

Therefore,

2(l+b) = 400

2(3x+2x) = 400

2(5x) = 400

10x = 400

x = $\dfrac{400}{10}$

x = 40

_____________________

length (l) = 3x

l = 3(40)

l = 120m

$\\$

breadth (b) = 2x

b = 2(40)

b = 80m

_____________________

Now,

$\boxed{\pink{area\: of \: rectangle = l \times b}}$

area of rectangle

= 120 × 80

= 9600 sq.m.

$\\$

Hence,

area of rectangle = 9600 sq.m.

Discussion

16.	7. In A ABC, AB = AC and the bisectors ofangles B and C intersect at point O. Provethat :(i) BO = CO(ii) AO bisects angle BAC.
Answer» Step-by-step EXPLANATION: PLEASE SEE above PICTURE for answer ☝☝☝☝

16.

7. In A ABC, AB = AC and the bisectors ofangles B and C intersect at point O. Provethat :(i) BO = CO(ii) AO bisects angle BAC.

Answer»

Step-by-step EXPLANATION:

PLEASE SEE above PICTURE for answer

☝☝☝☝

Discussion

17.	Mean of first 5 natural number
Answer» Answer: 1,2,3,4,5 are the FIRST FIVE NATURAL NUMBER

17.

Mean of first 5 natural number

Answer»

Answer:

1,2,3,4,5 are the FIRST FIVE NATURAL NUMBER

Discussion

18.	What is the volume of a cube whose diagonal measure is 4✓3 cm
Answer» Step-by-step EXPLANATION: DIAGONAL of cube=√3a =4√3. =√3a =a=4 so, VOLUME of cube=a^3 =4^3=64

18.

What is the volume of a cube whose diagonal measure is 4✓3 cm

Answer»

Step-by-step EXPLANATION:

DIAGONAL of cube=√3a

=4√3. =√3a

=a=4

so,

VOLUME of cube=a^3

=4^3=64

Discussion

19.	Heya here is your question in the attachment ✅✅✅✅✅✅✅✅✅✅✅
Answer» ANSWER: answer is J $\frac{1 + x}{x {}^{3} - x} = \frac{(1 + x)}{x(x {}^{2} - 1)} = \frac{(1 + x)}{x(x - 1)(x + 1)} = \frac{1}{x(x - 1)} = \frac{1}{(x {}^{2} - x)}$

19.

Heya here is your question in the attachment ✅✅✅✅✅✅✅✅✅✅✅

Answer»

ANSWER:

answer is J

$\frac{1 + x}{x {}^{3} - x} = \frac{(1 + x)}{x(x {}^{2} - 1)} = \frac{(1 + x)}{x(x - 1)(x + 1)} = \frac{1}{x(x - 1)} = \frac{1}{(x {}^{2} - x)}$

Discussion

20.	URGENT what should be subtracted from -5/4 to get -1
Answer» ANSWER: -5/4-(-1) (-5+4)/4 -1/4

20.

URGENT what should be subtracted from -5/4 to get -1

Answer»

ANSWER:

-5/4-(-1)

(-5+4)/4

-1/4

Discussion

21.	Define line pair angle
Answer» Answer: A linear pair is a pair of adjacent, supplementary angles. Adjacent means NEXT to each other, and supplementary means that the MEASURES of the TWO angles ADD up to equal 180 degrees. HOPE IT HELPS YOU ❤

21.

Define line pair angle

Answer»

Answer:

A linear pair is a pair of adjacent, supplementary angles. Adjacent means NEXT to each other, and supplementary means that the MEASURES of the TWO angles ADD up to equal 180 degrees.

HOPE IT HELPS YOU ❤

Discussion

22.	Out gives obseravation the number which occurs maximum called
Answer» ANSWER: The answer is MODE....

22.

Out gives obseravation the number which occurs maximum called

Answer»

ANSWER:

The answer is MODE....

Discussion

23.	Plzz solve all the questionsit's too much urgent only and only expert can solve....
Answer» ANSWER: SEE the ATTACHMENT below Step-by-step EXPLANATION:

23.

Plzz solve all the questionsit's too much urgent only and only expert can solve....

Answer»

ANSWER:

SEE the ATTACHMENT below

Step-by-step EXPLANATION:

Discussion

24.	What number should be subtracted from-3/5 to get-3?
Answer» -3/5-x=-3 -3/5+3=x (-3+15)/5=x 12/5=x

24.

What number should be subtracted from-3/5 to get-3?

Answer»

-3/5-x=-3

-3/5+3=x

(-3+15)/5=x

12/5=x

Discussion

25.	9. Find gain or loss :a) C.P. = RS 2346, S.P. = Rs 3200b) C.P. = Rs 9080, S.P.= Rs 8750
Answer» Step-by-step EXPLANATION: PROFIT = Sp - CP loss = Cp - Sp 1) Cp = 2346 and Sp = 3200 profit = sp - cp = 3200 - 2346 profit = 854/- 2) Cp = 9080 and Sp = 8750 loss = Cp - Sp = 9080 - 8750 loss = 330/-

25.

9. Find gain or loss :a) C.P. = RS 2346, S.P. = Rs 3200b) C.P. = Rs 9080, S.P.= Rs 8750

Answer»

Step-by-step EXPLANATION:

PROFIT = Sp - CP

loss = Cp - Sp

1) Cp = 2346 and Sp = 3200

profit = sp - cp

= 3200 - 2346

profit = 854/-

2) Cp = 9080 and Sp = 8750

loss = Cp - Sp

= 9080 - 8750

loss = 330/-

Discussion

26.	Between 1/2 and -1/2 which one is greater ?
Answer» Answer: 1/2 is greater because it's positive no. it means it come before 0. And -1/2 is smaller ONE beciz it's NEGATIVE it came after 0 and smaller than 0.

26.

Between 1/2 and -1/2 which one is greater ?

Answer»

Answer:

1/2 is greater because it's positive no. it means it come before 0.

And -1/2 is smaller ONE beciz it's NEGATIVE it came after 0 and smaller than 0.

Discussion

27.	P(X)=X Power 3 is the question asked from polynomials from exercise 2.2
Answer» which STANDARD.....?

27.

P(X)=X Power 3 is the question asked from polynomials from exercise 2.2

Answer»

which STANDARD.....?

Discussion

28.	From a rope 68 m long, pieces of equal size are cut. If length of one piece is 4¹/⁴m; find the number of such pieces.
Answer» Answer: 16 PIECES of ROPE are FORM

28.

From a rope 68 m long, pieces of equal size are cut. If length of one piece is 4¹/⁴m; find the number of such pieces.

Answer»

Answer:

16 PIECES of ROPE are FORM

Discussion

29.	A worker is paid 200 rupees for 8 days work if he worked for 20 days how much will he get
Answer» Answer: 500 rupee 8days= 200ruppe 1day=200/8=25 for 20 DAYS= 20*25=500ruppes

29.

A worker is paid 200 rupees for 8 days work if he worked for 20 days how much will he get

Answer»

Answer:

500 rupee

8days= 200ruppe

1day=200/8=25

for 20 DAYS= 20*25=500ruppes

Discussion

30.	Walls of two buildings on either side of a street are parellel to each other.A ladder 5.8 m long is placed on the street such that its top just reaches thewindow of a building at the height of 4 m. On turning the ladder over to the otherside of the street, its top touches the window of the other building at a height 4.2 m.Find the width of the street.
Answer» ANSWER: I have EXPLAINED the answer in the PICTURE HOPE it HELPS you

30.

Walls of two buildings on either side of a street are parellel to each other.A ladder 5.8 m long is placed on the street such that its top just reaches thewindow of a building at the height of 4 m. On turning the ladder over to the otherside of the street, its top touches the window of the other building at a height 4.2 m.Find the width of the street.

Answer»

ANSWER:

I have EXPLAINED the answer in the PICTURE HOPE it HELPS you

Discussion

31.	Find five rational numbers between 1/5 and 3/5
Answer» ANSWER: Step-by-step EXPLANATION: =1x10/5x10=10/50 =3x10/5x10=30/50 Rational numbers between 10/50 and 30/50 are 11/50,12/50,13/50,14/50,15/50... Hope it HELPS PLEASE MARK it brainliest :)

31.

Find five rational numbers between 1/5 and 3/5

Answer»

ANSWER:

Step-by-step EXPLANATION:

=1x10/5x10=10/50

=3x10/5x10=30/50

Rational numbers between 10/50 and 30/50 are 11/50,12/50,13/50,14/50,15/50...

Hope it HELPS

PLEASE MARK it brainliest :)

Discussion

32.	Let us write the value of y if the distance of the point (-4,y) from origin is 5 units
Answer» Step-by-step EXPLANATION: HOPE it HELPS you.....

32.

Let us write the value of y if the distance of the point (-4,y) from origin is 5 units

Answer»

Step-by-step EXPLANATION:

HOPE it HELPS you.....

Discussion

33.	Answer this question carefully
Answer» Answer: 1st ONE !!! i THINK .........

33.

Answer this question carefully

Answer»

Answer:

1st ONE !!! i THINK .........

Discussion

34.	Find area of shaded region
Answer» ANSWER: FIND hypotenuse of 48 and 52 ,then hypotenuse of 12 and 10 and substact both answers found .you will get answer.

34.

Find area of shaded region

Answer»

ANSWER:

FIND hypotenuse of 48 and 52 ,then hypotenuse of 12 and 10 and substact both answers found .you will get answer.

Discussion

35.	9.In the following figure AC = 10 &BD = 14, then area of quadrilateral ABCD -A35 V250 20250(A) 70/3(B) 14013bKO(C)35 13(D) 70
Answer» just we have to use formula, AREA of quadrilateral = $\frac{1}{2}P_1P_2sin\theta$ where $P_1$ and $P_2$ are length of DIAGONALS of quadrilateral , $\theta$ is angle between diagonals. Let diagonals intersect at O. from ∆BOC, $\angle OBC+\angle BCO+\angle COB=180^{\circ}$ or, $25^{\circ}+35^{\circ}+\theta=180^{\circ}$ or, $\theta=120^{\circ}$ also $P_1=10$ and $P_2=<klux>14</klux>$ now area of quadrilateral = 1/2 × 10 × 14 × sin120° = 70 × sin120° = 70 × √3/2 = 35√3 sq unit. hence, option (C) is correct CHOICE .

35.

9.In the following figure AC = 10 &BD = 14, then area of quadrilateral ABCD -A35 V250 20250(A) 70/3(B) 14013bKO(C)35 13(D) 70

Answer»

just we have to use formula,

AREA of quadrilateral = $\frac{1}{2}P_1P_2sin\theta$

where $P_1$ and $P_2$ are length of DIAGONALS of quadrilateral , $\theta$ is angle between diagonals.

Let diagonals intersect at O.

from ∆BOC,

$\angle OBC+\angle BCO+\angle COB=180^{\circ}$

or, $25^{\circ}+35^{\circ}+\theta=180^{\circ}$

or, $\theta=120^{\circ}$

also $P_1=10$ and $P_2=<klux>14</klux>$

now area of quadrilateral = 1/2 × 10 × 14 × sin120°

= 70 × sin120°

= 70 × √3/2 = 35√3 sq unit.

hence, option (C) is correct CHOICE .

Discussion

36.	Solve by multiplication method
Answer» Step-by-step EXPLANATION: ====================*here* is *your* *answer* *your* *question* are WRONG**

36.

Solve by multiplication method

Answer»

Step-by-step EXPLANATION:

====================here is your answer

your question are WRONG

Discussion

37.	Factories X3 - 6x2 + 11x -6
Answer» ANSWER = 3x-6×2+11×-6 (3x+11x)-12-6 14x-18

37.

Factories X3 - 6x2 + 11x -6

Answer»

ANSWER = 3x-6×2+11×-6

(3x+11x)-12-6

14x-18

Discussion

38.	What is line pair angle
Answer» A linear pair of angles is formed when two LINES intersect. Two angles are SAID to be linear if they are adjacentangles formed by two INTERSECTING lines. The MEASURE of a straight angleis 180 degrees, so a linear pair ofangles must add up to 180 degrees.

Discussion

39.	(16)^3/4 is equal to
Answer» ${(16)}^{ \frac{3}{4} } \\ \\ ({ {16}^{3}})^{ \frac{1}{4} } \\ \\ \sqrt[4]{ {16}^{3} } \\ \\ \sqrt[4]{4096} = 8$

39.

(16)^3/4 is equal to

Answer»

${(16)}^{ \frac{3}{4} } \\ \\ ({ {16}^{3}})^{ \frac{1}{4} } \\ \\ \sqrt[4]{ {16}^{3} } \\ \\ \sqrt[4]{4096} = 8$

Discussion

40.	Divide 3982 km 592 m by 32
Answer» Answer: 3982000+592= 3982592m On DIVISION we will GET 124456

40.

Divide 3982 km 592 m by 32

Answer»

Answer:

3982000+592= 3982592m

On DIVISION we will GET 124456

Discussion

41.	Which is called identity for the addition of rational number
Answer» <P>a RATIONAL NUMBER is a number which are in the FORM of p by Q

Discussion

42.	Express 0.75 as a rational number
Answer» *0.75* = 75/100 *thank* *you*

42.

Express 0.75 as a rational number

Answer»

0.75

= 75/100

thank you

Discussion

43.	After arranging the data in acending or desending orderbthe middle term called
Answer» ANSWER: MEDIAN ............ HOPE it will HELP you..

43.

After arranging the data in acending or desending orderbthe middle term called

Answer»

ANSWER:

MEDIAN ............

HOPE it will HELP you..

Discussion

44.	Pls solve......... urgent
Answer» ANSWER: I don't KNOW ok Step-by-step EXPLANATION: SORRY)))))

44.

Pls solve......... urgent

Answer»

ANSWER:

I don't KNOW ok

Step-by-step EXPLANATION:

SORRY)))))

Discussion

45.	?%of(813.97×3.08)=754.08+467.06
Answer» Answer: 48.7086 Step-by-step EXPLANATION: X% × (813.97×3.08) = 754.08+467.06 x/100 × 2507.0276 = 1221.14 x/100 = 1221.14/2507.0276 x/100 = 0.487086 x = 48.7086

45.

?%of(813.97×3.08)=754.08+467.06

Answer»

Answer:

48.7086

Step-by-step EXPLANATION:

X% × (813.97×3.08) = 754.08+467.06

x/100 × 2507.0276 = 1221.14

x/100 = 1221.14/2507.0276

x/100 = 0.487086

x = 48.7086

Discussion

46.	What is an irrational number raised to an irrational number
Answer» ANSWER: wht is IRRATIONAL no ya KYA hai

46.

What is an irrational number raised to an irrational number

Answer»

ANSWER:

wht is IRRATIONAL no ya KYA hai

Discussion

47.	If a=3+2√2 then find the value of asquare +1/asquare
Answer» ANSWER: a SQUARE =3+2√2square 9+8+4√2 (17+4√2)+1/17+4√2=306/17+4√2

47.

If a=3+2√2 then find the value of asquare +1/asquare

Answer»

ANSWER:

a SQUARE =3+2√2square

9+8+4√2

(17+4√2)+1/17+4√2=306/17+4√2

Discussion

48.	If in a class test 15 questions are given 4 and (-2) marks for every wrong answer so renu answer only 5 right answer so what will be her score?
Answer» Step-by-step EXPLANATION: Let X be the number of INCORRECT ANSWERS gurupreet answered. Since he answered all and GOT 9 correct, 9+x=15 Hence x=15−9=6 So his total score is 4∗9+(−2)∗6=36−12=24

48.

If in a class test 15 questions are given 4 and (-2) marks for every wrong answer so renu answer only 5 right answer so what will be her score?

Answer»

Step-by-step EXPLANATION:

Let X be the number of INCORRECT ANSWERS gurupreet answered.

Since he answered all and GOT 9 correct, 9+x=15

Hence x=15−9=6

So his total score is 4∗9+(−2)∗6=36−12=24

Discussion

49.	Sum of n terms of 2A.Ps is sn÷sn-=then find the ratio of three 8th terms. T8÷T8-=?
Answer» Answer: bahi yes question kon DAY to HAI

49.

Sum of n terms of 2A.Ps is sn÷sn-=then find the ratio of three 8th terms. T8÷T8-=?

Answer»

Answer:

bahi yes question kon DAY to HAI

Discussion

50.	What is the answer of this (2y-3)²?
Answer» ANSWER: (a-b)^2=a^2+b^2-2ab Hence (2y-3)^2=4y^2+9-12y Hope it helps Step-by-step EXPLANATION:

50.

What is the answer of this (2y-3)²?

Answer»

ANSWER:

(a-b)^2=a^2+b^2-2ab

Hence

(2y-3)^2=4y^2+9-12y

Hope it helps

Step-by-step EXPLANATION:

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