332354 + Interview Questions in Secondary School in Math

1.	Find 3 rational numbers between - 2/3 and 1/3
Answer» Answer: 0, -1/3 , 1/6 and MANY more are POSSIBLE

1.

Find 3 rational numbers between - 2/3 and 1/3

Answer»

Answer:

0, -1/3 , 1/6 and MANY more are POSSIBLE

Discussion

2.	Expand (2x_3y)(2x_3y)
Answer» ANSWER: (2x-3y) (2x-3y) = 4x^2- 12XY +9y^2 Step-by-step EXPLANATION: HOPE this will HELP you

2.

Expand (2x_3y)(2x_3y)

Answer»

ANSWER:

(2x-3y) (2x-3y)

= 4x^2- 12XY +9y^2

Step-by-step EXPLANATION:

HOPE this will HELP you

Discussion

3.	Find the period of 5 in 20,00,53
Answer» ANSWER: FIVE is in TENS PLACE OK

3.

Find the period of 5 in 20,00,53

Answer»

ANSWER:

FIVE is in TENS PLACE OK

Discussion

4.	X=a and y=b X+y =5 and 2x-3y=4 then a and b
Answer» I hope u understand my answer

4.

X=a and y=b X+y =5 and 2x-3y=4 then a and b

Answer»

I

hope

u

understand

my

answer

Discussion

5.	Given that hcf of 16,20 and x is 4.if x > 20,find the smallest value of x. hence find the lcm of the three numbers
Answer» Answer: hcf DIVIDES all the numbers whose hcf it is. so the SMALLEST VALUE of x is 24 because 24, 20, 16 are divisible by 4.

5.

Given that hcf of 16,20 and x is 4.if x > 20,find the smallest value of x. hence find the lcm of the three numbers

Answer»

Answer:

hcf DIVIDES all the numbers whose hcf it is. so the SMALLEST VALUE of x is 24 because 24, 20, 16 are divisible by 4.

Discussion

6.	-1/5=8/x find the value of x
Answer» ANSWER: -40 Step-by-step EXPLANATION: -1/5=8/x by CROSS MULTIPLICATION -1x=40 x=-40

6.

-1/5=8/x find the value of x

Answer»

ANSWER:

-40

Step-by-step EXPLANATION:

-1/5=8/x

by CROSS MULTIPLICATION

-1x=40

x=-40

Discussion

7.	Multiplicative inverse of -27 is
Answer» ANSWER: answer is 27 because in MULTIPLICATION the INTEGER will be in other INTEGERS

7.

Multiplicative inverse of -27 is

Answer»

ANSWER:

answer is 27 because in MULTIPLICATION the INTEGER will be in other INTEGERS

Discussion

8.	2538751 in international system
Answer» Answer: 2,538,751 ,is in INTERNATIONAL FORM

8.

2538751 in international system

Answer»

Answer:

2,538,751 ,is in INTERNATIONAL FORM

Discussion

9.	The perimeter of square b is times the perimeter of square a
Answer» ANSWER: PLEASE SPECIFY the QUESTION.

9.

The perimeter of square b is times the perimeter of square a

Answer»

ANSWER:

PLEASE SPECIFY the QUESTION.

Discussion

10.	8 to the power minus 1 into 5 to the power 3 divided by 2 to the power minus 4
Answer» Answer: 250 Step-by-step EXPLANATION: For explanation REFER ATTACHED IMAGE

10.

8 to the power minus 1 into 5 to the power 3 divided by 2 to the power minus 4

Answer»

Answer:

250

Step-by-step EXPLANATION:

For explanation REFER ATTACHED IMAGE

Discussion

11.	-1/2 or -1 which is greater
Answer» ANSWER: -1.... is GREATER......

11.

-1/2 or -1 which is greater

Answer»

ANSWER:

-1.... is GREATER......

Discussion

12.	A rational number between √3 and √5
Answer» ANSWER: d is the answer because it COMES between 1.73 and 2.23

12.

A rational number between √3 and √5

Answer»

ANSWER:

d is the answer because it COMES between 1.73 and 2.23

Discussion

13.	A room 4.9 m long and 3.5 m broad is covered with carpet, leaving an uncovered margin of 25 cm all around the room. If the breadth of the carpet is 80 cm, find its cost at Rs. 80 per metre.
Answer» PLEASE FOLLOW me. Please MARK me as a BRAINLIEST ANSWER.

13.

A room 4.9 m long and 3.5 m broad is covered with carpet, leaving an uncovered margin of 25 cm all around the room. If the breadth of the carpet is 80 cm, find its cost at Rs. 80 per metre.

Answer»

PLEASE FOLLOW me.

Please MARK me as a BRAINLIEST ANSWER.

Discussion

14.	37 coconuts in each bag there are 37 bags there are 37 checkposts pay 1 coconut from each bag for each checkpost how much remain last(Example: At 1st checkpost he pays 37 coconuts, 1 coconut from each bag. Later he adjusts 36 coconuts in to the remaining 36 bags. For the 2nd checkpost he has 36 bags of coconuts each bag contains 37 coconuts.)
Answer» The number of COCONUT that remains is 666 Step-by-step explanation: From question, there are 37 coconuts are in 1 BAG and there are 37 bags. Total number of coconuts = 37 × 37 = 1369 From question, the person has to pay one coconut for each bag. At 1st check post, the person LOSSES one bag. At 2nd check post, the person losses only 36 coconut and the one coconut left in 36th bag is shifted to 35th bag. At 3rd check post, the person losses only 35 coconut and the three coconuts left in 35th bag is shifted to 34th bag. Likewise, the number of coconut increases. At last, Number of coconut = (0 + 1 + 2 + 3 + ..... + 36) = 666

14.

37 coconuts in each bag there are 37 bags there are 37 checkposts pay 1 coconut from each bag for each checkpost how much remain last(Example: At 1st checkpost he pays 37 coconuts, 1 coconut from each bag. Later he adjusts 36 coconuts in to the remaining 36 bags. For the 2nd checkpost he has 36 bags of coconuts each bag contains 37 coconuts.)

Answer»

The number of COCONUT that remains is 666

Step-by-step explanation:

From question, there are 37 coconuts are in 1 BAG and there are 37 bags.

Total number of coconuts = 37 × 37 = 1369

From question, the person has to pay one coconut for each bag.

At 1st check post, the person LOSSES one bag.

At 2nd check post, the person losses only 36 coconut and the one coconut left in 36th bag is shifted to 35th bag.

At 3rd check post, the person losses only 35 coconut and the three coconuts left in 35th bag is shifted to 34th bag.

Likewise, the number of coconut increases.

At last, Number of coconut = (0 + 1 + 2 + 3 + ..... + 36) = 666

Discussion

15.	Need help for b and c ...
Answer» ANSWER is in the ATTACHMENT

Discussion

16.	Q.1 Factor the following using identities wherever necessary1) x to the power 2- 93) x to the power 2 - 8x + 164) 2x to the power 2 -14x5) 20a square b - 25a3b6) a square + ac + ab + bc7) 15xy – 6x + 5y – 28) 3x + 9y9) 3xyz + 2710) 2abc + 7ac + 9bc
Answer» Step-by-step explanation: 1. ${x}^{<klux>2</klux>} - 9 \\ = {x}^{2} - {3}^{2} \\ = (x + 3)(x - 3)$ 2. ${x}^{2} - 8x + 16 \\ = {x}^{2} - 2 \times x \times 4 + {4}^{2} \\ = {(x - 4)}^{2} \\ = (x - 4)(x - 4)$ 3. ${(2x)}^{2} - 14x \\ = 4 {x}^{2} - 14x \\ = 2x(2x - 7)$ 4. $20 {a}^{2} b - 25 {a}^{3} b \\ = 5 {a}^{2} b(4 - 5a)$ 6. ${a}^{2} + ac + ab + bc \\ = a(a + c) + b(a + c) \\ = (a + c)(a + b)$ 7. $15xy - 6x + 5y - 2 \\ =$ 8. $3x + 9y \\ = 3(x + 3y)$ 9. $3xyz + 27 \\ = 3(xyz + 9)$ 10. $2abc + 7ac + 9bc \\ = 9bc + 9abc - 7abc + 7ac \\ = 9bc(1 + a) - 7ac(b - 1)$ something went WRONG in question NUMBER 7 and 10. and QUESTIONS number 2 is missing.

16.

Q.1 Factor the following using identities wherever necessary1) x to the power 2- 93) x to the power 2 - 8x + 164) 2x to the power 2 -14x5) 20a square b - 25a3b6) a square + ac + ab + bc7) 15xy – 6x + 5y – 28) 3x + 9y9) 3xyz + 2710) 2abc + 7ac + 9bc

Answer»

Step-by-step explanation:

1.

${x}^{<klux>2</klux>} - 9 \\ = {x}^{2} - {3}^{2} \\ = (x + 3)(x - 3)$

2.

${x}^{2} - 8x + 16 \\ = {x}^{2} - 2 \times x \times 4 + {4}^{2} \\ = {(x - 4)}^{2} \\ = (x - 4)(x - 4)$

3.

${(2x)}^{2} - 14x \\ = 4 {x}^{2} - 14x \\ = 2x(2x - 7)$

4.

$20 {a}^{2} b - 25 {a}^{3} b \\ = 5 {a}^{2} b(4 - 5a)$

6.

${a}^{2} + ac + ab + bc \\ = a(a + c) + b(a + c) \\ = (a + c)(a + b)$

7.

$15xy - 6x + 5y - 2 \\ =$

8.

$3x + 9y \\ = 3(x + 3y)$

9.

$3xyz + 27 \\ = 3(xyz + 9)$

10.

$2abc + 7ac + 9bc \\ = 9bc + 9abc - 7abc + 7ac \\ = 9bc(1 + a) - 7ac(b - 1)$

something went WRONG in question NUMBER 7 and 10.

and QUESTIONS number 2 is missing.

Discussion

17.	2/3or 3/4 which is greater
Answer» Answer: 3/4.......... ........

17.

2/3or 3/4 which is greater

Answer»

Answer:

3/4..........

........

Discussion

18.	2 pens cost 2.46 5 folders cost 5.70 tom buys 20 pens and 20 folders how much change does he get from 50 note
Answer» Answer: 2.60 Step-by-step explanation: 2 PEN = 2.46 20 pen = 24.60 5 FOLDERS = 5.70 20 folders = 22.80 he PAYS 50.00 he SAVES = 50.00 - (24.60 + 22.80) = 2.60

18.

2 pens cost 2.46 5 folders cost 5.70 tom buys 20 pens and 20 folders how much change does he get from 50 note

Answer»

Answer:

2.60

Step-by-step explanation:

2 PEN = 2.46

20 pen = 24.60

5 FOLDERS = 5.70

20 folders = 22.80

he PAYS 50.00

he SAVES = 50.00 - (24.60 + 22.80) = 2.60

Discussion

19.	Please solve this puzzle.
Answer» Answer: 29 is the answer Step-by-step explanatin 9×2=18+9+2=29

19.

Please solve this puzzle.

Answer»

Answer:

29 is the answer

Step-by-step explanatin

9×2=18+9+2=29

Discussion

20.	Rationalise √3 Please answer fast i have online test today at 8 pm
Answer» Step-by-step EXPLANATION: HENCE, √3 VALUE UPTO 3decimal PLACES is 1.732 {√3 = 1.732 }

20.

Rationalise √3 Please answer fast i have online test today at 8 pm

Answer»

Step-by-step EXPLANATION:

HENCE, √3 VALUE UPTO 3decimal PLACES is 1.732

{√3 = 1.732 }

Discussion

21.	PLease answer this fellow XI'ths
Answer» ANSWER: your answer ATTACHED in the PHOTO

21.

PLease answer this fellow XI'ths

Answer»

ANSWER:

your answer ATTACHED in the PHOTO

Discussion

22.	Find the value of 'p' such that the pair 3x+py=8 and x-y=-1 have only one solution
Answer» FIRST FOLLOW me then HEHEHEHE

22.

Find the value of 'p' such that the pair 3x+py=8 and x-y=-1 have only one solution

Answer»

FIRST FOLLOW me then HEHEHEHE

Discussion

23.	Factorize 4(a+b)^2 -a^2+2ab-b^2
Answer» ANSWER: HOPE it WOULD HELP you..

23.

Factorize 4(a+b)^2 -a^2+2ab-b^2

Answer»

ANSWER:

HOPE it WOULD HELP you..

Discussion

24.	Find the area of the following step by step
Answer» AREA of SQUARE = side^2 = s^2 s = 7.25 m 7(1/4)^2 = 52.5625 sq m Hope you FOUND this helpful :)

24.

Find the area of the following step by step

Answer»

AREA of SQUARE = side^2 = s^2

s = 7.25 m

7(1/4)^2 = 52.5625 sq m

Hope you FOUND this helpful :)

Discussion

25.	65536 = 4^n How to find the value of n???
Answer» The VALUE of N is 8 THANKS

25.

65536 = 4^n How to find the value of n???

Answer»

The VALUE of N is 8

THANKS

Discussion

26.	Are you a math genius...Plz answer the following question..
Answer» $\blue{\bold{\underline{\underline{Answer:}}}}$ $\green{\tt{\therefore{Ratio\:of\:their\:<klux>AGE</klux>\:=\:11\::\:53}}}$ $\orange{\bold{\underline{\underline{Step-by-step\:explanation:}}}}$ LET, Tanya's PRESENT age be x years. GRANDFATHER's present age be y years. According to the question , $y - 16 = 8(x - 16) \\ ⇛y - 16 = 8x - 128 \\ y = 8x - 128+ 16 \\ y = 8x - 112..........(i)$ 8 years from now, Tanya's age = (x + 8) years Grandfather's age = (y + 8) years According to the question , $y + 8 = 3(x + 8) \\ ⇛8x - 112 + 8 = 3(x + 8) \\ ⇛8x - 104 = 3x + 24 \\ ⇛8x - 3x = 24 + 104 \\ ⇛5x = 128\\ ⇛x = \frac{128}{x}$ Substituting x = $\frac{128}{5}$ in eation (i) $y = \frac{128 \times 8}{5} - 112 \\ \frac{1024 - 560}{5} = \frac{464}{5}$ 8 years ago, Tanya's age = $\frac{128}{5}$ - 8 = $\frac{88}{5}$ Grandfather $\frac{464}{5}$ $\frac{424}{5}$ 's age = - 8 = Ratio of their age = 88 : 424 ㅤㅤㅤㅤㅤㅤㅤ ㅤ=11 : 53

26.

Are you a math genius...Plz answer the following question..

Answer»

$\blue{\bold{\underline{\underline{Answer:}}}}$

$\green{\tt{\therefore{Ratio\:of\:their\:<klux>AGE</klux>\:=\:11\::\:53}}}$

$\orange{\bold{\underline{\underline{Step-by-step\:explanation:}}}}$

LET,

Tanya's PRESENT age be x years.
GRANDFATHER's present age be y years.

According to the question ,

$y - 16 = 8(x - 16) \\ ⇛y - 16 = 8x - 128 \\ y = 8x - 128+ 16 \\ y = 8x - 112..........(i)$

8 years from now,

Tanya's age = (x + 8) years
Grandfather's age = (y + 8) years

According to the question ,

$y + 8 = 3(x + 8) \\ ⇛8x - 112 + 8 = 3(x + 8) \\ ⇛8x - 104 = 3x + 24 \\ ⇛8x - 3x = 24 + 104 \\ ⇛5x = 128\\ ⇛x = \frac{128}{x}$

Substituting x = $\frac{128}{5}$ in eation (i)

$y = \frac{128 \times 8}{5} - 112 \\ \frac{1024 - 560}{5} = \frac{464}{5}$

8 years ago,

Tanya's age = $\frac{128}{5}$ - 8 = $\frac{88}{5}$

Grandfather $\frac{464}{5}$ $\frac{424}{5}$ 's age = - 8 =

Ratio of their age = 88 : 424

ㅤㅤㅤㅤㅤㅤㅤ ㅤ=11 : 53

Discussion

27.	Find the area of anisoscles triangle eachof whose equal side is18 um and base is 28 cm.
Answer» Step-by-step EXPLANATION: *PLZ* *REFER* TO THE ATTACHMENT FOR THE ANSWER.....

27.

Find the area of anisoscles triangle eachof whose equal side is18 um and base is 28 cm.

Answer»

Step-by-step EXPLANATION:

PLZ REFER TO THE ATTACHMENT FOR THE ANSWER.....

Discussion

28.	Plz answer the question in factorization method. question (v)
Answer» $\large{ \red{ \bold{ \underline{ \underline{Question....}}}}}$ $\large{ \sf{factorize \: \: 3( \frac{3x - 1}{2x + 3}) - 2( \frac{2x + 3}{3x - 1} ) = 5}}$ $\large{ \bold{ \green{ \underline{ \underline{answer...}}}}}$ X= 0 or -7 $\large{ \red{ \bold{ \underline{ \underline{Solution...}}}}}$ $\large{ \sf{ \to \: we \: can \: observe \: that \: the \: terms}} \\ \large{ \sf{in \: lhs \: are \: reciprocal \: of \: each \: other}} \\ \large{ \sf{so \: we \: will \: apply \: this...}} \\ \\ \large{ \sf{ \to let \: \frac{3x - 1}{2x + 3} \: be \: \: \red{a}}} \\ \large{ \sf{ \to \: then \: \frac{2x + 3}{3x - 1} = \frac{1}{a} }} \\ \\ \large{ \sf{ \to \: 3a - \frac{2}{a} = 5(polynomial \: now...)}} \\ \\ \large{ \sf{ \to \: \frac{3 {a}^{2} - 2 }{a} = 5}} \\ \\ \large{ \sf{ \to \: 3 {a}^{2} - 5a - 2 = 0}} \\ \\ \large{ \sf{ \to \: 3 {a}^{2} - 6a + a - 2 = 0}} \\ \\ \large{ \sf{ \to \: 3a(a - 2) + 1(a - 2) = 0}} \\ \\ \large{ \sf{ \to \: (3a + 1)(a - 2) = 0}} \\ \\ \large{ \sf{ \green{ \to \: then \: a = \frac{ - 1}{3} or \: 2}}}$ $\large{ \sf{ \: so \: now...there \: are \: two \: cases...}} \\ \\ \red{ \bold{ \underline{case = 1)}}} \: \large{ \sf{ \frac{3x - 1}{2x + 3} = \frac{ - 1}{3} }} \\ \\ \large{ \sf{ \to \: - 2x - 3 = 9x - 3}}(cross \: multiplication) \\ \\ \large{ \sf{ \to \: - 2x - 9x = - 3 + 3}} \\ \\ \large{ \sf{ \to \: - 11x = 0}} \\ \\ \large{ \sf{ \red{ \to \: x = 0} \blue{(ans - (1))}}} \\ \\ \red{ \bold{ \underline{case = 2)}}} \large{ \sf{ \frac{3x - 1}{2x + 3} = 2}} \\ \\ \large{ \sf{ \to \: 3x - 1 = 4x + 6}} \\ \\ \large{ \sf{ \to \: 3x - 4x = 6 + 1}} \\ \\ \large{ \sf{ \to \: - x = 7}} \\ \\ \large{ \sf{ \red{ \to \: x = - 7} (\blue{ans - (2))}}}$ $\large{ \bold{ \purple{required \: answer(x = 0 \: or \: - 7)}}}$

28.

Plz answer the question in factorization method. question (v)

Answer»

$\large{ \red{ \bold{ \underline{ \underline{Question....}}}}}$

$\large{ \sf{factorize \: \: 3( \frac{3x - 1}{2x + 3}) - 2( \frac{2x + 3}{3x - 1} ) = 5}}$

$\large{ \bold{ \green{ \underline{ \underline{answer...}}}}}$

X= 0 or -7

$\large{ \red{ \bold{ \underline{ \underline{Solution...}}}}}$

$\large{ \sf{ \to \: we \: can \: observe \: that \: the \: terms}} \\ \large{ \sf{in \: lhs \: are \: reciprocal \: of \: each \: other}} \\ \large{ \sf{so \: we \: will \: apply \: this...}} \\ \\ \large{ \sf{ \to let \: \frac{3x - 1}{2x + 3} \: be \: \: \red{a}}} \\ \large{ \sf{ \to \: then \: \frac{2x + 3}{3x - 1} = \frac{1}{a} }} \\ \\ \large{ \sf{ \to \: 3a - \frac{2}{a} = 5(polynomial \: now...)}} \\ \\ \large{ \sf{ \to \: \frac{3 {a}^{2} - 2 }{a} = 5}} \\ \\ \large{ \sf{ \to \: 3 {a}^{2} - 5a - 2 = 0}} \\ \\ \large{ \sf{ \to \: 3 {a}^{2} - 6a + a - 2 = 0}} \\ \\ \large{ \sf{ \to \: 3a(a - 2) + 1(a - 2) = 0}} \\ \\ \large{ \sf{ \to \: (3a + 1)(a - 2) = 0}} \\ \\ \large{ \sf{ \green{ \to \: then \: a = \frac{ - 1}{3} or \: 2}}}$

$\large{ \sf{ \: so \: now...there \: are \: two \: cases...}} \\ \\ \red{ \bold{ \underline{case = 1)}}} \: \large{ \sf{ \frac{3x - 1}{2x + 3} = \frac{ - 1}{3} }} \\ \\ \large{ \sf{ \to \: - 2x - 3 = 9x - 3}}(cross \: multiplication) \\ \\ \large{ \sf{ \to \: - 2x - 9x = - 3 + 3}} \\ \\ \large{ \sf{ \to \: - 11x = 0}} \\ \\ \large{ \sf{ \red{ \to \: x = 0} \blue{(ans - (1))}}} \\ \\ \red{ \bold{ \underline{case = 2)}}} \large{ \sf{ \frac{3x - 1}{2x + 3} = 2}} \\ \\ \large{ \sf{ \to \: 3x - 1 = 4x + 6}} \\ \\ \large{ \sf{ \to \: 3x - 4x = 6 + 1}} \\ \\ \large{ \sf{ \to \: - x = 7}} \\ \\ \large{ \sf{ \red{ \to \: x = - 7} (\blue{ans - (2))}}}$

$\large{ \bold{ \purple{required \: answer(x = 0 \: or \: - 7)}}}$

Discussion

29.	If the roots of the equation ax2 + 2cx + b = 0 are real and distinct, then show that the rootsof the equation x2- 2(a + b)x + a2 + b2 + 2c2 = 0 are non-real complex numbers.
Answer» If the roots of x2−2cx+ab=0 are REAL and UNEQUAL then discriminant D>0 ⇒(−2c)2−4ab>0 ⇒4c2−4ab>0 ⇒c2>ab now in QUADRATIC equation x2−2(a+b)x+a2+b2+2c2=0 discriminant D={−2(a+b)}2−4(a2+b2+2c2) =4(a+b)2−4(a2+b2+2c2) =4(2ab−2c2) =8(ab−c2) < 0 Since discriminant is negative ∴ The roots of the given equation will be imaginary=0

29.

If the roots of the equation ax2 + 2cx + b = 0 are real and distinct, then show that the rootsof the equation x2- 2(a + b)x + a2 + b2 + 2c2 = 0 are non-real complex numbers.

Answer»

If the roots of x2−2cx+ab=0 are REAL and UNEQUAL

then discriminant D>0

⇒(−2c)2−4ab>0

⇒4c2−4ab>0

⇒c2>ab

now in QUADRATIC equation

x2−2(a+b)x+a2+b2+2c2=0

discriminant D={−2(a+b)}2−4(a2+b2+2c2)

=4(a+b)2−4(a2+b2+2c2)

=4(2ab−2c2)

=8(ab−c2) < 0

Since discriminant is negative

∴ The roots of the given equation will be imaginary=0

Discussion

30.	-3/4 or 1/4 which is greater
Answer» HEY MATE 1/4 is GREATER than -3/4. hope it HELPS. ☆☆☆

30.

-3/4 or 1/4 which is greater

Answer»

HEY MATE

1/4 is GREATER than -3/4.

hope it HELPS.

☆☆☆

Discussion

31.	a seminar started at 10:15 am and lasted for 3 hours and 40 minutes. At what time was the seminar concluded?
Answer» Answer: 1:55 pm hope you FIND it HELPFUL

31.

a seminar started at 10:15 am and lasted for 3 hours and 40 minutes. At what time was the seminar concluded?

Answer»

Answer:

1:55 pm

hope you FIND it HELPFUL

Discussion

32.	If quartile range is 24 then quartile deviation is
Answer» ANSWER: If QUARTILE RANGE is 24 then DEVIATION is 12

32.

If quartile range is 24 then quartile deviation is

Answer»

ANSWER:

If QUARTILE RANGE is 24 then DEVIATION is 12

Discussion

33.	2850 ma sa 30 percent subtract
Answer» ANSWER is in the ATTACHMENT

33.

2850 ma sa 30 percent subtract

Answer»

ANSWER is in the ATTACHMENT

Discussion

34.	Please answers step by step
Answer» Answer: HEY which SOLUTION U want....just mark that ONE and post

34.

Please answers step by step

Answer»

Answer:

HEY which SOLUTION U want....just mark that ONE and post

Discussion

35.	Please answer this question I can't understand this question and with solutions please.
Answer» ANSWER: don't KNOW the answer DEAR SORRY

35.

Please answer this question I can't understand this question and with solutions please.

Answer»

ANSWER:

don't KNOW the answer DEAR SORRY

Discussion

36.	Derivative of sin(tan^_1(e^x)
Answer» ANSWER: LET y=sin{tan^-1(e^x)} dy/dx=cos{tan^-1(e^x)}×1/√1+e^x×e^x dy/dx=costan^-1(e^x) 1/√e^2x hope it HELPS

36.

Derivative of sin(tan^_1(e^x)

Answer»

ANSWER:

LET

y=sin{tan^-1(e^x)}

dy/dx=cos{tan^-1(e^x)}×1/√1+e^x×e^x

dy/dx=costan^-1(e^x) 1/√e^2x

hope it HELPS

Discussion

37.	A hollow cylindrical metal pipe is 49 cm long. The inner radius of the pipe is 3 cm and the outer radius is 4cm.
Answer» ANSWER: what is the QUESTION? Step-by-step EXPLANATION:

37.

A hollow cylindrical metal pipe is 49 cm long. The inner radius of the pipe is 3 cm and the outer radius is 4cm.

Answer»

ANSWER:

what is the QUESTION?

Step-by-step EXPLANATION:

Discussion

38.	Hello Friend......plz.... solve it.....A man standing at a point P is watching the top of a tower, which makes an angle of elevation of 300 with the man’s eye. The man walks some distance towards the tower to watch its top and the angle of elevation becomes 600. What is the distance between the base of the tower and the point P?
Answer» ANSWER: CHECK the ATTACHMENT for the answer... HOPE this HELPS you...

38.

Hello Friend......plz.... solve it.....A man standing at a point P is watching the top of a tower, which makes an angle of elevation of 300 with the man’s eye. The man walks some distance towards the tower to watch its top and the angle of elevation becomes 600. What is the distance between the base of the tower and the point P?

Answer»

ANSWER:

CHECK the ATTACHMENT for the answer...

HOPE this HELPS you...

Discussion

39.	How to make geomatricall graph of this table whish is marked in red. Marked in brainlist
Answer» Answer: YES my question is exactly that only Step-by-step EXPLANATION: please LET me know ALSO answer and please follow me

39.

How to make geomatricall graph of this table whish is marked in red. Marked in brainlist

Answer»

Answer:

YES my question is exactly that only

Step-by-step EXPLANATION:

please LET me know ALSO answer

and

please

follow me

Discussion

40.	write the other linear equation which has no solutions to its pair 3x+5y=20 (That means this pair have no solution)
Answer» for this a1x+b1y=c1,a2x+b2y=C2 then a1/a2=b1/b2dosnot EQUAL toc1/C2 so the ANSWER is 3x+5y=21

40.

write the other linear equation which has no solutions to its pair 3x+5y=20 (That means this pair have no solution)

Answer»

for this a1x+b1y=c1,a2x+b2y=C2 then a1/a2=b1/b2dosnot EQUAL toc1/C2 so the ANSWER is 3x+5y=21

Discussion

41.	What is round off 48865 to the nearest 100
Answer» 48900 is the CORRECT answer. Hope you FOUND this HELPFUL :)

41.

What is round off 48865 to the nearest 100

Answer»

48900 is the CORRECT answer.

Hope you FOUND this HELPFUL :)

Discussion

42.	Use euclid division lemma to show that any positive odd intiger is of the form 6q+1, 6q+3,6q+5don't give answerjust give explanation to this question faastttt common
Answer» ANSWER: SORRY for BAD WRITING. here is your answer.

42.

Use euclid division lemma to show that any positive odd intiger is of the form 6q+1, 6q+3,6q+5don't give answerjust give explanation to this question faastttt common

Answer»

ANSWER:

SORRY for BAD WRITING. here is your answer.

Discussion

43.	Estimate the following someto the nearest hundred.372591 + 2836
Answer» ANSWER: Answer. 375427 ESTIMATED ANS. = 375400

43.

Estimate the following someto the nearest hundred.372591 + 2836

Answer»

ANSWER:

Answer. 375427

ESTIMATED ANS. = 375400

Discussion

44.	What is tue fraction between 1 by 3 and 1 by 2
Answer» ANSWER: hdjdgdkjbdhdhjdjdgd

44.

What is tue fraction between 1 by 3 and 1 by 2

Answer»

ANSWER:

hdjdgdkjbdhdhjdjdgd

Discussion

45.	4x+y=17 ,, 6x+3y=15 find x and y
Answer» Answer: 4x+y=17 ,, 6x+3y=15 FIND X and y Step-by-step EXPLANATION:

45.

4x+y=17 ,, 6x+3y=15 find x and y

Answer»

Answer:

4x+y=17 ,, 6x+3y=15 FIND X and y

Step-by-step EXPLANATION:

Discussion

46.	Koi Dhan Koi Dhan chakravriddhi byaaj se 15 varshon Mein Apne se 2 Guna Ho Jata Hai Kitne varshon Maiya Apne se 8 Guna ho jaega
Answer» Step-by-step explanation: 60 VARSHON is the ANSWER

46.

Koi Dhan Koi Dhan chakravriddhi byaaj se 15 varshon Mein Apne se 2 Guna Ho Jata Hai Kitne varshon Maiya Apne se 8 Guna ho jaega

Answer»

Step-by-step explanation:

60 VARSHON is the ANSWER

Discussion

47.	By using 9 to 21 sum will be 45
Answer» Answer: 31+14....... MARK as BRAINIEST

47.

By using 9 to 21 sum will be 45

Answer»

Answer:

31+14....... MARK as BRAINIEST

Discussion

48.	A boy runs for 20 min.at a uniform speed of 18m/h.At what speed should he run for the next 40 min. So that the average speed comes 24km/hr
Answer» Given that, a boy runs for 20 MIN at a uniform speed of 18 km/h. Time = 20 min = 20/60 = 1/3 hours Speed = 18 km/hr We KNOW that, Distance = Speed × Time = 18 × 1/3 = 6 km We have to find that at what speed should he run for the NEXT 40 min. Now, New Time = 40 min = 40/60 = 2/3 hours New Speed = 24 km/hr Let us assume that the distance he travelled in 40 min be is x km. Total distance: x + 6 = 24, x = 24 - 6 = 18 km Also, assume that he require speed of y km/hr. Distance = Speed × Time → 18 = y × 2/3 → 18 × 3/2 = y → 9 × 3 = y → 27 = y Therefore, the speed of the boys is 27 km/hr.

48.

A boy runs for 20 min.at a uniform speed of 18m/h.At what speed should he run for the next 40 min. So that the average speed comes 24km/hr

Answer»

Given that, a boy runs for 20 MIN at a uniform speed of 18 km/h.

Time = 20 min = 20/60 = 1/3 hours

Speed = 18 km/hr

We KNOW that,

Distance = Speed × Time

= 18 × 1/3 = 6 km

We have to find that at what speed should he run for the NEXT 40 min.

Now,

New Time = 40 min = 40/60 = 2/3 hours

New Speed = 24 km/hr

Let us assume that the distance he travelled in 40 min be is x km.

Total distance: x + 6 = 24, x = 24 - 6 = 18 km

Also, assume that he require speed of y km/hr.

Distance = Speed × Time

→ 18 = y × 2/3

→ 18 × 3/2 = y

→ 9 × 3 = y

→ 27 = y

Therefore, the speed of the boys is 27 km/hr.

Discussion

49.	The difference of an integer a and (-5) is -3find value of a
Answer» ANSWER: a= -2 Step-by-step EXPLANATION: -5-a=-3 -a=-3+5 -a=2 a=-2

49.

The difference of an integer a and (-5) is -3find value of a

Answer»

ANSWER:

a= -2

Step-by-step EXPLANATION:

-5-a=-3

-a=-3+5

-a=2

a=-2

Discussion

50.	What is the lowest common factor of 66
Answer» Ans 2, 33, 3, 22, 1, 66, 6, 11 Step-by-step EXPLANATION:

50.

What is the lowest common factor of 66

Answer»

Ans

2, 33, 3, 22, 1, 66, 6, 11

Step-by-step EXPLANATION:

Discussion

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