332354 + Interview Questions in Secondary School in Math

1.	*33630 are divided among A, B and Cin such a manner that the ratio of the amount of A to that of Bis3:7 and the ratio of the amount of B to that of Cis 6:5. Then, find the amount of money received by B.will
Answer» Answer: 14868 Step-by-step explanation: Ratio of A & B = 3:7 Ratio of B & C = 6:5 Ratio of A, B & C = 18:42:35 assume A's amount = 18x B's Amount = 42x C's amount = 35x => 18x + 42x + 35x = 33630 => 95X = 33630 => x = 354 B's amount = 42x = 42 * 354 = 14868

1.

*33630 are divided among A, B and Cin such a manner that the ratio of the amount of A to that of Bis3:7 and the ratio of the amount of B to that of Cis 6:5. Then, find the amount of money received by B.will

Answer»

Answer:

14868

Step-by-step explanation:

Ratio of A & B = 3:7

Ratio of B & C = 6:5

Ratio of A, B & C = 18:42:35

assume A's amount = 18x

B's Amount = 42x

C's amount = 35x

=> 18x + 42x + 35x = 33630

=> 95X = 33630

=> x = 354

B's amount = 42x

= 42 * 354

= 14868

Discussion

2.	( √11 - √7) ( √11 +√7) on simplification gives :1. -42. 43. ✓11
Answer» ANSWER: 11-7 = 4 is the answer of your QUESTION

2.

( √11 - √7) ( √11 +√7) on simplification gives :1. -42. 43. ✓11

Answer»

ANSWER:

11-7 = 4 is the answer of your QUESTION

Discussion

3.	I will mark as brainliest if you answer this all questions
Answer» Answer: itne saare question., NAHI BHAI aap KHUD hi kar LO

3.

I will mark as brainliest if you answer this all questions

Answer»

Answer:

itne saare question., NAHI BHAI aap KHUD hi kar LO

Discussion

4.	What is the geometric centre of surface or body called as
Answer» Answer: Centeriod In MATHEMATICS and physics, the centroid or geometric center of a plane FIGURE is the arithmetic mean POSITION of all the points in the figure. Informally, it is the point at which a cutout of the shape COULD be perfectly balanced on the tip of a pin. Mark as Brainliest

4.

What is the geometric centre of surface or body called as

Answer»

Answer:

Centeriod

In MATHEMATICS and physics, the centroid or geometric center of a plane FIGURE is the arithmetic mean POSITION of all the points in the figure. Informally, it is the point at which a cutout of the shape COULD be perfectly balanced on the tip of a pin.

Mark as Brainliest

Discussion

5.	Factorise (x3+7x+12)
Answer» ANSWER: X(x-4)(x-3). *THANKS*!!❣

5.

Factorise (x3+7x+12)

Answer»

ANSWER:

X(x-4)(x-3).

THANKS!!❣

Discussion

6.	Find the zeroes of the polynomial 4x^2-3x-1
Answer» Step-by-step explanation: 4x²-4x+x-1 4x(x-1)+1(x-1) (4x+1)(x-1) x=-1/4,1 solve this by SPLITTING the MIDDLE term please MARK me the BRAINLIEST

6.

Find the zeroes of the polynomial 4x^2-3x-1

Answer»

Step-by-step explanation:

4x²-4x+x-1

4x(x-1)+1(x-1)

(4x+1)(x-1)

x=-1/4,1

solve this by SPLITTING the MIDDLE term

please MARK me the BRAINLIEST

Discussion

7.	Sin 80degree- cos 80 degree is negative. True or false
Answer» Answer: SIN 80° - cos 80° is NEGATIVE. ( True ) We know that sinθ is increasing when, 0∘≤θ≤90∘ and cosθ is DECREASING when, 0∘≤θ≤90∘. Follow me PLZ

7.

Sin 80degree- cos 80 degree is negative. True or false

Answer»

Answer:

SIN 80° - cos 80° is NEGATIVE. ( True )

We know that sinθ is increasing when, 0∘≤θ≤90∘ and cosθ is DECREASING when, 0∘≤θ≤90∘.

Follow me PLZ

Discussion

8.	2055Page No.DateMATHSTESTThe degree of zero polynomial is____________The coefficient of xsq is______in the polynomialmial CP (re) a so- 3+2+72)3)The valueofpolynomial p(x) = x100-1_____for x=-1check whether- 2 and 2are zeroes of the polynomialx+2
Answer» Answer: 1.)0 2) 3)-101 4)-2 is a ZERO of it

8.

2055Page No.DateMATHSTESTThe degree of zero polynomial is______The coefficient of xsq isin the polynomialmial CP (re) a so- 3+2+72)3)The valueofpolynomial p(x) = x100-1_for x=-1check whether- 2 and 2are zeroes of the polynomialx+2

Answer»

Answer:

1.)0

2)

3)-101

4)-2 is a ZERO of it

Discussion

9.	Find the sum of all the non negative terms of the following sequence 100,97,94.....and the answer should be 1717
Answer» here is your SOLUTION.

9.

Find the sum of all the non negative terms of the following sequence 100,97,94.....and the answer should be 1717

Answer»

here is your SOLUTION.

Discussion

10.	On a certain day of june the sun rises at 8:20and sets at 7:30 PM find length of the day
Answer» Answer: 11hours 10 MINUTES. Step-by-step explanation: 8:20 A.M 19:30 P.M Difference=11 hours 10 minutes LENGTH of day=11hours 10 minutes. HOPE THIS WILL HELPS YOU. Please MARK as brainliest.

10.

On a certain day of june the sun rises at 8:20and sets at 7:30 PM find length of the day

Answer»

Answer:

11hours 10 MINUTES.

Step-by-step explanation:

8:20 A.M 19:30 P.M

Difference=11 hours 10 minutes

LENGTH of day=11hours 10 minutes.

HOPE THIS WILL HELPS YOU.

Please MARK as brainliest.

Discussion

11.	If the adjacent triangle are similar then find the value of x by explanation
Answer» Answer: 5 Step-by-step explanation: By S.A.S AXIOM , ANGLE A= angle R, AB=QR, AC=PR. ThereforePR=X=5. HOPE THIS WILL HELPS YOU. Please mark it as brainliest.

11.

If the adjacent triangle are similar then find the value of x by explanation

Answer»

Answer:

5

Step-by-step explanation:

By S.A.S AXIOM ,

ANGLE A= angle R,

AB=QR,

AC=PR.

ThereforePR=X=5.

HOPE THIS WILL HELPS YOU.

Please mark it as brainliest.

Discussion

12.	Without actual division find which of the following rational number are terminating decimal11/24
Answer» आई डोंट केयर एंड आंसर नहीं पता इसका आंसर नहीं पता है हमें फुल क्वेश्चन बताओ यहां

Discussion

13.	Tell what property allows you to compute 1/3 x (6 x 4/3) as (1/3 x 6) x 4/3.
Answer» Step-by-step EXPLANATION: ASSOCIATIVE PROPERTY

13.

Tell what property allows you to compute 1/3 x (6 x 4/3) as (1/3 x 6) x 4/3.

Answer»

Step-by-step EXPLANATION:

ASSOCIATIVE PROPERTY

Discussion

14.	Find the zeroes of the polynomial 5x+3
Answer» <P>Step-by-step EXPLANATION: p(x) = 5x+3=0 = 5x=-3 = x= -3 5 may it helped you... if it is correct MARK me as a brainliest Thank you

14.

Find the zeroes of the polynomial 5x+3

Answer»

<P>Step-by-step EXPLANATION:

p(x) = 5x+3=0

= 5x=-3

= x= -3

5

may it helped you...

if it is correct MARK me as a brainliest

Thank you

Discussion

15.	What is the zeros of the quadratic polynomial x square - 7 x + 10
Answer» Step-by-step EXPLANATION: x²-5x-2x+10 x(x-5) -2(x-5) (x-2)(x-5)=0 x=2,5

15.

What is the zeros of the quadratic polynomial x square - 7 x + 10

Answer»

Step-by-step EXPLANATION:

x²-5x-2x+10

x(x-5) -2(x-5)

(x-2)(x-5)=0

x=2,5

Discussion

16.	List the integer values of x which satisfy 17 > 3x + 1 >5
Answer» ANSWER: 4/3 Step-by-step explanation: 3x+1>5 solving first inequality 3x>5-1 3x>4 x>4/3 solving SECOND inequality 3x+1<17 3x<16 x<16/3 so we can derive the answer as 4/3 please mark me the brainliest

16.

List the integer values of x which satisfy 17 > 3x + 1 >5

Answer»

ANSWER:

4/3

Step-by-step explanation:

3x+1>5 solving first inequality

3x>5-1

3x>4

x>4/3

solving SECOND inequality

3x+1<17

3x<16

x<16/3

so we can derive the answer as

4/3

please mark me the brainliest

Discussion

17.	in the first to year of his business bread made profit of rupee 54430 057 and rupee 23450 798 in the third year he lost rupee 9835 807 how much has he been left with
Answer» Answer: in the first to YEAR of his business bread made PROFIT of rupee 54430 057 and rupee 23450 798 in the THIRD year he lost rupee 9835 807 how MUCH has he been left with

17.

in the first to year of his business bread made profit of rupee 54430 057 and rupee 23450 798 in the third year he lost rupee 9835 807 how much has he been left with

Answer»

Answer:

in the first to YEAR of his business bread made PROFIT of rupee 54430 057 and rupee 23450 798 in the THIRD year he lost rupee 9835 807 how MUCH has he been left with

Discussion

18.	Common prime factor of 72 and 48 is
Answer» $\huge\boxed{\underline{\mathcal{\red{A}\green{N}\pink{S}\orange{W}\blue{E}\pink{R}}}}$ The factors of 48 are 48, 24, 16, 12, 8, 6, 4, 3, 2, 1. The factors of 72 are 72, 36, 24, 18, 12, 9, 8, 6, 4, 3, 2, 1. The common factors of 48 and 72 are 24, 12, 8, 6, 4, 3, 2, 1, The greatest common factor of 48 and 72 =24 The lowest common factor of 48 and 72=1

18.

Common prime factor of 72 and 48 is

Answer»

$\huge\boxed{\underline{\mathcal{\red{A}\green{N}\pink{S}\orange{W}\blue{E}\pink{R}}}}$

The factors of 48 are 48, 24, 16, 12, 8, 6, 4, 3, 2, 1.

The factors of 72 are 72, 36, 24, 18, 12, 9, 8, 6, 4, 3, 2, 1.

The common factors of 48 and 72 are 24, 12, 8, 6, 4, 3, 2, 1,

The greatest common factor of 48 and 72 =24

The lowest common factor of 48 and 72=1

Discussion

19.	AcerThe list of numbers - 10.-6. - 2.2.....is(A) an AP with d=-16(B) an AP with d= .(C) an AP with d=-4(D) not an AP
Answer» ANSWER: D– the LIST of NUMBERS not in AP.

19.

AcerThe list of numbers - 10.-6. - 2.2.....is(A) an AP with d=-16(B) an AP with d= .(C) an AP with d=-4(D) not an AP

Answer»

ANSWER:

D– the LIST of NUMBERS not in AP.

Discussion

20.	What was the original term for (Zero)
Answer» Answer: Zero" is the usual NAME for the NUMBER 0 in English. In British English "NOUGHT" is ALSO used. In American English "naught" is used occasionally for zero, but (as with British English) "naught" is more often used as an archaic WORD for nothing.

20.

What was the original term for (Zero)

Answer»

Answer:

Zero" is the usual NAME for the NUMBER 0 in English. In British English "NOUGHT" is ALSO used. In American English "naught" is used occasionally for zero, but (as with British English) "naught" is more often used as an archaic WORD for nothing.

Discussion

21.	The area of a regular octagon is 40 cm. What is the area of a regular octagon with sides three times as long? Please help me out on this one guys I tried searching up how to do it but got no answers also my teacher is not available right now.
Answer» Answer: regular polygon. ... Perimeter of an equilateral TRIANGLE = 3 × length of a side ... area. • Area of a rectangle = length × breadth. • Area of a square = side × side ... By SPLITTING the figure into FOUR rectangles, we get. 40% (02:26) CORRECT ... (1) The area of the circle is 16π square centimeters. ... This will HELP us figure out what d < 8cm tells us about s. ... But since the more sides there are to a regular polygon inscribed in a . Step-by-step explanation: PLEASE MARK ME AS BRAINLIEST and LIKE ME PLEASE

21.

The area of a regular octagon is 40 cm. What is the area of a regular octagon with sides three times as long? Please help me out on this one guys I tried searching up how to do it but got no answers also my teacher is not available right now.

Answer»

Answer:

regular polygon. ... Perimeter of an equilateral TRIANGLE = 3 × length of a side ... area. • Area of a rectangle = length × breadth. • Area of a square = side × side ... By SPLITTING the figure into FOUR rectangles, we get.

40% (02:26) CORRECT ... (1) The area of the circle is 16π square centimeters. ... This will HELP us figure out what d < 8cm tells us about s. ... But since the more sides there are to a regular polygon inscribed in a .

Step-by-step explanation:

PLEASE MARK ME AS BRAINLIEST and LIKE ME PLEASE

Discussion

22.	9x^2+27x-162=0 factors for the middle no?
Answer» 9x²+27x-162=0; 9(x²+3x-18)=0; x²+3x-18=0; x²+6x-3x-18=0(By SPLITTING the middle term); x(x+6)-3(x+6)=0; (x-3)(x+6)=0; x=(-6);3; Please mark the ANSWER as BRAINLIEST.

Discussion

23.	Find the 20 andterm of the GP.
Answer» Step-by-step EXPLANATION: यू आर क्वेश्चन रॉन्ग

23.

Find the 20 andterm of the GP.

Answer»

Step-by-step EXPLANATION:

यू आर क्वेश्चन रॉन्ग

Discussion

24.	State the smallest integer n for which 4n>19
Answer» For N = 5 this is possible. Hop U LIKE it

24.

State the smallest integer n for which 4n>19

Answer»

For N = 5 this is possible.

Hop U LIKE it

Discussion

25.	All answers please and I will mark answer as brainliest
Answer» Answer: 1-d 2-a 3-c 4-a 5-d 6-c 7-b 8-d 9-b pleas MARK me as BRAINLIEST

25.

All answers please and I will mark answer as brainliest

Answer»

Answer:

1-d

2-a

3-c

4-a

5-d

6-c

7-b

8-d

9-b

pleas MARK me as BRAINLIEST

Discussion

26.	If the adjacent triangle are similar then find the value of x
Answer» ANSWER: the answer is 7.5 Step-by-step EXPLANATION: I HOPE it HELPS you

26.

If the adjacent triangle are similar then find the value of x

Answer»

ANSWER:

the answer is 7.5

Step-by-step EXPLANATION:

I HOPE it HELPS you

Discussion

27.	India music group of 45 people one over Nine vocalist and rest people instruments how many people play instrument in the group
Answer» ANSWER: As it is written 1 over 9 it means 1 VOCALIST and 9 instrument this means 1 and 9 2 and 18 3 and 27 4 and 36 5 and 45 we will END this on 45 as there are 45 members. This means there are 5 vocalist and 40 instrument PLAYERS

27.

India music group of 45 people one over Nine vocalist and rest people instruments how many people play instrument in the group

Answer»

ANSWER:

As it is written 1 over 9 it means 1 VOCALIST and 9 instrument this means 1 and 9 2 and 18 3 and 27 4 and 36 5 and 45 we will END this on 45 as there are 45 members. This means there are 5 vocalist and 40 instrument PLAYERS

Discussion

28.	The present age of ramesh is 1/3 of his fathers age. After 9 years the age of ramesh will be 5/12 of his fathers age . Find present age of both .
Answer» ANSWER : Ramesh's present age is 21 years and his FATHER's present age is 63 years. EXPLANATION : GIVEN :- The present age of ramesh is 1/3 of his FATHERS age. After 9 years the age of ramesh will be 5/12 of his fathers age . TO FIND :- Present age of both. SOLUTION : Consider, Father's present age = x years. Ramesh's present age = y years. According to the question, $\sf{y=\frac{1}{3}x}$ $\implies\sf{y=\frac{x}{3}}$ $\implies\sf{x=3y...........(i)}$ ★ After 9 years , Father's age = ( x +9) years. Ramesh's age = (y+9) years. According to the question, $\sf{y+9 =\frac{5}{12}(x+9)}$ $\implies\sf{y+9=\frac{5(x+9)}{12}}$ $\implies\sf{y+9=\frac{5(3y+9)}{12}}$ $\implies\sf{12y+108=15y+45}$ $\implies\sf{12y-15y=45-108}$ $\implies\sf{-3y=-63}$ $\implies\sf{y=<klux>21</klux>}$ Ramesh's present age = 21 years. † PUTTING y = 21 in eq(i) † x = 3y → x = 3×21 → x = 63 Father's present age = 63 years. ________________________________

28.

The present age of ramesh is 1/3 of his fathers age. After 9 years the age of ramesh will be 5/12 of his fathers age . Find present age of both .

Answer»

ANSWER :

Ramesh's present age is 21 years and his FATHER's present age is 63 years.

EXPLANATION :

GIVEN :-

The present age of ramesh is 1/3 of his FATHERS age.
After 9 years the age of ramesh will be 5/12 of his fathers age .

TO FIND :-

Present age of both.

SOLUTION :

Consider,

Father's present age = x years.

Ramesh's present age = y years.

According to the question,

$\sf{y=\frac{1}{3}x}$

$\implies\sf{y=\frac{x}{3}}$

$\implies\sf{x=3y...........(i)}$

★ After 9 years ,

Father's age = ( x +9) years.

Ramesh's age = (y+9) years.

According to the question,

$\sf{y+9 =\frac{5}{12}(x+9)}$

$\implies\sf{y+9=\frac{5(x+9)}{12}}$

$\implies\sf{y+9=\frac{5(3y+9)}{12}}$

$\implies\sf{12y+108=15y+45}$

$\implies\sf{12y-15y=45-108}$

$\implies\sf{-3y=-63}$

$\implies\sf{y=<klux>21</klux>}$

Ramesh's present age = 21 years.

† PUTTING y = 21 in eq(i) †

x = 3y

→ x = 3×21

→ x = 63

Father's present age = 63 years.

________________________________

Discussion

29.	If the area of square is 625sq.m then find the length of each side of the square
Answer» Answer: area of a SQUARE = (SIDE) sq. = 625 sq. m let the side be x *ATP* $x { }^{2} = 625$ x= 25 m. Step-by-step explanation: Hence, the side of the square is 25 m *Hope* it *helps* *FRIEND*!! ❤️

29.

If the area of square is 625sq.m then find the length of each side of the square

Answer»

Answer:

area of a SQUARE = (SIDE) sq. = 625 sq. m

let the side be x

ATP

$x { }^{2} = 625$

x= 25 m.

Step-by-step explanation:

Hence, the side of the square is 25 m

Hope it helps FRIEND!! ❤️

Discussion

30.	The length of a rectangle is 32m and the length of its digonal is 40m. Find its area
Answer» Answer: 768 Step-by-step explanation: 40²-32²=576 √576=24 .........,.AREA =24x32=768

30.

The length of a rectangle is 32m and the length of its digonal is 40m. Find its area

Answer»

Answer:

768

Step-by-step explanation:

40²-32²=576

√576=24

.........,.AREA =24x32=768

Discussion

31.	Convert into fraction 5.125, bar on 5
Answer» Answer: 5125 Step-by-step EXPLANATION:

31.

Convert into fraction 5.125, bar on 5

Answer»

Answer:

5125

Step-by-step EXPLANATION:

Discussion

32.	Withoutactually performing the long division, state whether the following rational numbers willhave a terminating decimal expansion or a non-terminating decimal expansion.6/15
Answer» ANSWER: Here the DECIMAL will have a TERMINATING decimal EXPANSION.

32.

Withoutactually performing the long division, state whether the following rational numbers willhave a terminating decimal expansion or a non-terminating decimal expansion.6/15

Answer»

ANSWER:

Here the DECIMAL will have a TERMINATING decimal EXPANSION.

Discussion

33.	SIf the zeres of polynomial x2-3x + k arethe reciprocal of the zeras then find thevalue k? how we get k/2=1
Answer» ANSWER:k=3 Step-by-step EXPLANATION: k=3

33.

SIf the zeres of polynomial x2-3x + k arethe reciprocal of the zeras then find thevalue k? how we get k/2=1

Answer»

ANSWER:k=3

Step-by-step EXPLANATION:

k=3

Discussion

34.	22/70.50.5*4 please tell me answer
Answer» ANSWER: 22/7×0.5×0.5×4 =22/7×2.5×4 =3.14×10 31.4 is the answer MARK as BRAINLIST answer

34.

22/70.50.5*4 please tell me answer

Answer»

ANSWER:

22/7×0.5×0.5×4

=22/7×2.5×4

=3.14×10

31.4 is the answer

MARK as BRAINLIST answer

Discussion

35.	One card is drawn from a well shuffleddeck of 52 cards. Find the probability that thenumber on it is a prime number.
Answer» ANSWER: PROBABILITY is 16/52 or 4/13

35.

One card is drawn from a well shuffleddeck of 52 cards. Find the probability that thenumber on it is a prime number.

Answer»

ANSWER:

PROBABILITY is 16/52 or 4/13

Discussion

36.	Find the area of rectangular Park which is 46.3 metre long and 27.2 wide
Answer» ANSWER: AREA=1259.36m^2 Step-by-step EXPLANATION: Area of RECTANGLE:-lb l=46.3m b=27.2m Area=46.3 * 27.2 ------>1259.36

36.

Find the area of rectangular Park which is 46.3 metre long and 27.2 wide

Answer»

ANSWER:

AREA=1259.36m^2

Step-by-step EXPLANATION:

Area of RECTANGLE:-lb

l=46.3m

b=27.2m

Area=46.3 * 27.2 ------>1259.36

Discussion

37.	n^2-1 is devided by 8,if n is -i)an odd integer ii)an even integer iii)an integer iv)a natural number
Answer» Answer: (1) odd integer Step-by-step explanation: n²-1=8a since MULTIPLE of 8 = even number since SQUARE of an odd integer is odd number => odd-1 = even number => N is an odd integer

37.

n^2-1 is devided by 8,if n is -i)an odd integer ii)an even integer iii)an integer iv)a natural number

Answer»

Answer:

(1) odd integer

Step-by-step explanation:

n²-1=8a

since MULTIPLE of 8 = even number

since SQUARE of an odd integer is odd number

=> odd-1 = even number

=> N is an odd integer

Discussion

38.	Subtract Following 44 from -56
Answer» Step-by-step EXPLANATION: the ANSWER is -100 hope it HELPS u

38.

Subtract Following 44 from -56

Answer»

Step-by-step EXPLANATION:

the ANSWER is -100 hope it HELPS u

Discussion

39.	8 the observation 1,2,3,... Bo have ithe varianceVi and the observation 51,52,53, ... 100 have theVariance Ve then wis–
Answer» ANSWER: what is your QUESTION ASKING

39.

8 the observation 1,2,3,... Bo have ithe varianceVi and the observation 51,52,53, ... 100 have theVariance Ve then wis–

Answer»

ANSWER:

what is your QUESTION ASKING

Discussion

40.	A अकेला एक कार्य को 12 दिन में समाप्त कर सकता है जबकि B अकेला इसे 15 दिन में समाप्त करता है दोनों c के साथ मिलकर कार्य को 5 दिन में पूरा करते हैं यदि इस कार्य की कुल मजदूरी 96 रुपए मिली हो तो इस धन को A, B तथा C में किस प्रकार वितरित किया जाएगा ?
Answer» ANSWER: you will DIVIDE MONEY among three Step-by-step explanation: 96 is total money 3 person 96/3 =32will be given to all

40.

A अकेला एक कार्य को 12 दिन में समाप्त कर सकता है जबकि B अकेला इसे 15 दिन में समाप्त करता है दोनों c के साथ मिलकर कार्य को 5 दिन में पूरा करते हैं यदि इस कार्य की कुल मजदूरी 96 रुपए मिली हो तो इस धन को A, B तथा C में किस प्रकार वितरित किया जाएगा ?

Answer»

ANSWER:

you will DIVIDE MONEY among three

Step-by-step explanation:

96 is total money

3 person

96/3

=32will be given to all

Discussion

41.	Verify x+y=y+x for following values of x and y x=-5/14,y=-1/21
Answer» Step-by-step EXPLANATION: x+y=y+x ;x=-5/14,y=-1/21 -5/14+(-1/21)=(-1/21+(-5/14)) =LCM =42 -15+(-2)/42 =(-2)+(-15)/42 =-17/42=-17/42

41.

Verify x+y=y+x for following values of x and y x=-5/14,y=-1/21

Answer»

Step-by-step EXPLANATION:

x+y=y+x ;x=-5/14,y=-1/21

-5/14+(-1/21)=(-1/21+(-5/14))

=LCM =42

-15+(-2)/42 =(-2)+(-15)/42

=-17/42=-17/42

Discussion

42.	Omen sales to the first customer have her stock and have an apple II II customer she sells have for remaining stock and half an apple and so on the third and fourth customer she finds that she has now 15 apples state how many apples did she have before she started selling?A)63B)127C)240D)289
Answer» Answer: B)127 PLZZ MARK me as BRAINLIEST

42.

Omen sales to the first customer have her stock and have an apple II II customer she sells have for remaining stock and half an apple and so on the third and fourth customer she finds that she has now 15 apples state how many apples did she have before she started selling?A)63B)127C)240D)289

Answer»

Answer:

B)127

PLZZ MARK me as BRAINLIEST

Discussion

43.	A piece of wood is of length 45 cm. The length is divided in the ratio 7 : 2 What is the length of each part.
Answer» Answer: 35cm ,10cm Step-by-step EXPLANATION: Ratio=7:2 Length of wood=45cm Total parts=7+2 = 9 parts 9 part s=45cm 1 part=5 cm 7 parts=35cm 2 parts=10cm

43.

A piece of wood is of length 45 cm. The length is divided in the ratio 7 : 2 What is the length of each part.

Answer»

Answer:

35cm ,10cm

Step-by-step EXPLANATION:

Ratio=7:2

Length of wood=45cm

Total parts=7+2 = 9 parts

9 part s=45cm

1 part=5 cm

7 parts=35cm 2 parts=10cm

Discussion

44.	X= 3-2√2findthe value ofx² - 1/x^2
Answer» ANSWER: $x = 3 - 2 \sqrt{2} \\ \frac{1}{x} = \frac{1}{3 - 2 \sqrt{2}} \times \frac{3 + 2 \sqrt{2}}{3 + 2 \sqrt{2}} \\ \: \: \: = \frac{3 + 2 \sqrt{2}}{( {3})^{2} -(2 \sqrt{2} ) ^{2} } \\ \: \: \: = \frac{3 + 2 \sqrt{2}}{9 - 8} \\ \: \: \: = 3 + 2 \sqrt{2} \\ x + \frac{1}{x} \\ = 3 - 2 \sqrt{2} + 3 + 2 \sqrt{2} \\ = 6 \: \: \: \: \: \: \: \: \: \: ....(1) \\x - \frac{1}{x} \\ = 3 - 2 \sqrt{2} - 3 - 2 \sqrt{2} \\ = - 4 \sqrt{2} \: \: \: \: \: ....(2)\\ now \\ {x}^{2} - \frac{1}{ {x}^{2} } =( x + \frac{1}{x})(x - \frac{1}{x} ) \\ = 6 \times ( - 4 \sqrt{2}) \: \: \: \: \: \: \: \: \: \: \: (from \: 1 \: and \: 2)\\ = - 24 \sqrt{2}$

44.

X= 3-2√2findthe value ofx² - 1/x^2

Answer»

ANSWER:

$x = 3 - 2 \sqrt{2} \\ \frac{1}{x} = \frac{1}{3 - 2 \sqrt{2}} \times \frac{3 + 2 \sqrt{2}}{3 + 2 \sqrt{2}} \\ \: \: \: = \frac{3 + 2 \sqrt{2}}{( {3})^{2} -(2 \sqrt{2} ) ^{2} } \\ \: \: \: = \frac{3 + 2 \sqrt{2}}{9 - 8} \\ \: \: \: = 3 + 2 \sqrt{2} \\ x + \frac{1}{x} \\ = 3 - 2 \sqrt{2} + 3 + 2 \sqrt{2} \\ = 6 \: \: \: \: \: \: \: \: \: \: ....(1) \\x - \frac{1}{x} \\ = 3 - 2 \sqrt{2} - 3 - 2 \sqrt{2} \\ = - 4 \sqrt{2} \: \: \: \: \: ....(2)\\ now \\ {x}^{2} - \frac{1}{ {x}^{2} } =( x + \frac{1}{x})(x - \frac{1}{x} ) \\ = 6 \times ( - 4 \sqrt{2}) \: \: \: \: \: \: \: \: \: \: \: (from \: 1 \: and \: 2)\\ = - 24 \sqrt{2}$

Discussion

45.	Pls solve que no. 5. ,ans is -4 ....bt show me the solution plz
Answer» ANSWER: HEY MATE I THINK the answer is-1 but not -4.

45.

Pls solve que no. 5. ,ans is -4 ....bt show me the solution plz

Answer»

ANSWER:

HEY MATE I THINK the answer is-1 but not -4.

Discussion

46.	One of the root of quadratic equation is 2+3root3 the other root is?
Answer» Answer: 2-3√3 Step-by-step EXPLANATION: other ROOT is 2-3√3 plz MARK as BRAINLIST

46.

One of the root of quadratic equation is 2+3root3 the other root is?

Answer»

Answer:

2-3√3

Step-by-step EXPLANATION:

other ROOT is 2-3√3

plz MARK as BRAINLIST

Discussion

47.	Find the points of intersection of the graphs of y=x^2 and y=3x-2choices; a.(1,1)(1,4) b. (2,4)(1,1) c. (1,-1)(2,4) d.(-2,4)(1,1)ill make you brainliest if you answer this correctly show your solutionsexplain pleasee and ill make you brainliest
Answer» hey MATE here is ur answer = answer =y=x² y=3x-2 x²=3x-2 x²-2x-1x+2=0 x(x-2)-1(x-2)=0 x=1 or x=2 y=1 or y=4 HENCE TWO SETS are (1,1) and (2,4) hence (b) is ✔✔✔. hope it helps. ☆☆☆

47.

Find the points of intersection of the graphs of y=x^2 and y=3x-2choices; a.(1,1)(1,4) b. (2,4)(1,1) c. (1,-1)(2,4) d.(-2,4)(1,1)ill make you brainliest if you answer this correctly show your solutionsexplain pleasee and ill make you brainliest

Answer»

hey MATE here is ur answer =

answer =y=x²

y=3x-2

x²=3x-2

x²-2x-1x+2=0

x(x-2)-1(x-2)=0

x=1 or x=2

y=1 or y=4

HENCE TWO SETS are (1,1) and (2,4)

hence (b) is ✔✔✔.

hope it helps.

☆☆☆

Discussion

48.	Factorization 3x^2+10x+8
Answer» $\huge\green{\underbrace{\overbrace{\ulcorner{\mid{\overline{\underline{ANSWER}}}}}}}$ ${\bf{\red{=>3x^2+10x+8}}}$ ${\bf{\red{=>3x^2+6x+4x+8}}}$ ${\bf{\red{=>3x(x+2)+4(x+2)}}}$ ${\bf{\red{=>(3x+4)(x+2)}}}$ [

48.

Factorization 3x^2+10x+8

Answer»

$\huge\green{\underbrace{\overbrace{\ulcorner{\mid{\overline{\underline{ANSWER}}}}}}}$

${\bf{\red{=>3x^2+10x+8}}}$

${\bf{\red{=>3x^2+6x+4x+8}}}$

${\bf{\red{=>3x(x+2)+4(x+2)}}}$

${\bf{\red{=>(3x+4)(x+2)}}}$

[

Discussion

49.	2008 was a leap year
Answer» ANSWER: YES 2008 is the LEAP YEAR

49.

2008 was a leap year

Answer»

ANSWER:

YES 2008 is the LEAP YEAR

Discussion

50.	Insert commas in 5121
Answer» ANSWER: 5,121 please MARK as BRAINLLIST answer and FOLLOW me

50.

Insert commas in 5121

Answer»

ANSWER:

5,121

please MARK as BRAINLLIST answer and FOLLOW me

Discussion

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