332354 + Interview Questions in Secondary School in Math

1.	CAN YOU PLEASE SOLVE THIS :(-18) + 12 - (-4) + (-6)
Answer» $\huge\mathfrak\blue{Answer:}$ $\huge\orange {- 8}$ Step-by-step EXPLANATION: ACCORDING to the Q, $> > ( - 18) + 12 - ( - 4) +( - 6)$ $> > ( - 18) + 12 + 4 - 6$ $> > ( - 18) + 16 - 6$ $> > ( - 18) + 10$ $\orange {> > - 8}$ pls mark me as the BRAINLIST....❤️ $also pls follow me...$

1.

CAN YOU PLEASE SOLVE THIS :(-18) + 12 - (-4) + (-6)

Answer»

$\huge\mathfrak\blue{Answer:}$

$\huge\orange {- 8}$

Step-by-step EXPLANATION:

ACCORDING to the Q,

$> > ( - 18) + 12 - ( - 4) +( - 6)$

$> > ( - 18) + 12 + 4 - 6$

$> > ( - 18) + 16 - 6$

$> > ( - 18) + 10$

$\orange {> > - 8}$

pls mark me as the BRAINLIST....❤️

$also pls follow me...$

Discussion

2.	The length of rectangle is 15cmand breadth is 5cm find it's area
Answer» Answer: 15 ×5 =========== 75 ,,,,

2.

The length of rectangle is 15cmand breadth is 5cm find it's area

Answer»

Answer:

15 ×5 =========== 75 ,,,,

Discussion

3.	(ii)x + y= 3 + x2find derivative of bi over X Plus bi find derivative of X + Y equal to 3 + x square
Answer» ANSWER: nbfjtu vgugiu hccgvfgjghgfv Step-by-step EXPLANATION:

3.

(ii)x + y= 3 + x2find derivative of bi over X Plus bi find derivative of X + Y equal to 3 + x square

Answer»

ANSWER:

nbfjtu vgugiu hccgvfgjghgfv

Step-by-step EXPLANATION:

Discussion

4.	Answer this question now asap please show your solutions step by step and I'll make you brainliest only ifbyou have your solutions step by stepPleasee question 36
Answer» ANSWER: -(-3)^3 = -((-3)^3) = -(-27) = 27. HOPE IT HELPS PLS MARK IT AS THE BRAINLIEST AND DO FOLLOW ME

4.

Answer this question now asap please show your solutions step by step and I'll make you brainliest only ifbyou have your solutions step by stepPleasee question 36

Answer»

ANSWER:

-(-3)^3

= -((-3)^3)

= -(-27)

= 27.

HOPE IT HELPS

PLS MARK IT AS THE BRAINLIEST

AND DO FOLLOW ME

Discussion

5.	Place value of 0 in 12048 is
Answer» Answer: 0 Step-by-step EXPLANATION:

5.

Place value of 0 in 12048 is

Answer»

Answer:

0

Step-by-step EXPLANATION:

Discussion

6.	Cos12 +cos84+cos132+cos156 =? pls answer ....
Answer» ANSWER: VOCAL BIGGEST you are the

6.

Cos12 +cos84+cos132+cos156 =? pls answer ....

Answer»

ANSWER:

VOCAL BIGGEST you are the

Discussion

7.	Verify the following (-3/4)+3 = 3+(-3/4)
Answer» -3+12/4 = 12-3/4 9/4 = 9/4 HENCE VERIFIED

7.

Verify the following (-3/4)+3 = 3+(-3/4)

Answer»

-3+12/4 = 12-3/4

9/4 = 9/4

HENCE VERIFIED

Discussion

8.	Which of the following will not represent zero [a] 1 plus 0
Answer» Answer: 1 + 0 = 1 If any natural number is ADDED to 0 then it can't REPRESENT 0. It only represent the number which is added to 0. EG. 4+0 = 4 HOPE it helps you. Thank you

8.

Which of the following will not represent zero [a] 1 plus 0

Answer»

Answer:

1 + 0 = 1

If any natural number is ADDED to 0 then it can't REPRESENT 0. It only represent the number which is added to 0.

EG. 4+0 = 4

HOPE it helps you.

Thank you

Discussion

9.	If HCF of 35 and 45 is 5, LCM of 35 and 45 is 63 × a, then the value of a is.......
Answer» Step-by-step explanation: 35=57 45=533 HCF is 5 LCM is 5579=1575 so, 1575/63=25 a=25

9.

If HCF of 35 and 45 is 5, LCM of 35 and 45 is 63 × a, then the value of a is.......

Answer»

Step-by-step explanation:

35=5*7

45=5*3*3

HCF is 5

LCM is 5*5*7*9=1575

so, 1575/63=25

a=25

Discussion

10.	The mean of 8, 11, 6, 14, x and 13 is 12
Answer» ANSWER: $20$ Step-by-step EXPLANATION: $(8 + 11 + 6 + 14 + x + 13) \div 6 = 12$ $52 + x = 12 \times 6$ $52 + x = 72$ $x = 20$

10.

The mean of 8, 11, 6, 14, x and 13 is 12

Answer»

ANSWER:

$20$

Step-by-step EXPLANATION:

$(8 + 11 + 6 + 14 + x + 13) \div 6 = 12$

$52 + x = 12 \times 6$

$52 + x = 72$

$x = 20$

Discussion

11.	If A:B =4:9 and B:C = find A:C
Answer» ANSWER: AB=4:9 and B:C =FIND A:C=C:B

11.

If A:B =4:9 and B:C = find A:C

Answer»

ANSWER:

AB=4:9 and B:C =FIND A:C=C:B

Discussion

12.	2. The decimal representation of √3 is * 1 point a) Non-terminating and repeating b)Non-terminating and non- repeating c) Terminating d)None of these.
Answer» ANSWER: (B) NON terminatinɡ and nonrepeatinɡ Step-by-step EXPLANATION: THANKS

12.

2. The decimal representation of √3 is * 1 point a) Non-terminating and repeating b)Non-terminating and non- repeating c) Terminating d)None of these.

Answer»

ANSWER:

(B) NON terminatinɡ and nonrepeatinɡ

Step-by-step EXPLANATION:

THANKS

Discussion

13.	The difference between a three digit number and a number formed by reversing its digits is 198. Determine the number, if the sum of the digits is 10
Answer» Answer: Any 3-digit number can be written in the form 100x + 10y + z, where x, y, and z are the hundreds, tens, and ones digits, respectively. For example, the number 325 can be written as 100(3) + 10(2) + 5. Now, the number formed by reversing the digits will be 100z + 10y + x. For example, in the case of 325, the number with the reversed digits becomes 100(5) + 10(2) + 3. Now, subtracting we have 100x + 10y + z – (100z + 10y + x) = 100x + 10y + z –100z – 10y – x = 99X – 99z. Factoring, we have 99(x – z). SINCE x and z are 1-digitnumbers, x – z is an integer. Since 99 is a factor of 99(x – z), 99(x – z) is divisible by 99. Therefore, the difference of a 3-digit number and the number formed by reversing the ORDER of its digits is divisible by 99 Explanation-The difference of a 3-digit number and the number formed by reversing the order of its digits is divisible by 99.

13.

The difference between a three digit number and a number formed by reversing its digits is 198. Determine the number, if the sum of the digits is 10

Answer»

Answer:

Any 3-digit number can be written in the form 100x + 10y + z, where x, y, and z are the hundreds, tens, and ones digits, respectively. For example, the number 325 can be written as

100(3) + 10(2) + 5.

Now, the number formed by reversing the digits will be 100z + 10y + x. For example, in the case of 325, the number with the reversed digits becomes

100(5) + 10(2) + 3.

Now, subtracting we have

100x + 10y + z – (100z + 10y + x) = 100x + 10y + z –100z – 10y – x = 99X – 99z.

Factoring, we have 99(x – z). SINCE x and z are 1-digitnumbers, x – z is an integer. Since 99 is a factor of 99(x – z), 99(x – z) is divisible by 99. Therefore, the difference of a 3-digit number and the number formed by reversing the ORDER of its digits is divisible by 99

Explanation-The difference of a 3-digit number and the number formed by reversing the order of its digits is divisible by 99.

Discussion

14.	2. Subtract:1. 61 from 852. -23 from -19
Answer» Answer: 1. 24 2. 4 Step-by-step EXPLANATION: 85 -61 _____ 24 _____ -19-(-23) = -19 + 23 =4

14.

2. Subtract:1. 61 from 852. -23 from -19

Answer»

Answer:

1. 24

2. 4

Step-by-step EXPLANATION:

85

-61

_____

24

_____

-19-(-23) = -19 + 23

=4

Discussion

15.	When a number is first increased by 10% and then reduced by 10 % the number is
Answer» ANSWER: -1%................

15.

When a number is first increased by 10% and then reduced by 10 % the number is

Answer»

ANSWER:

-1%................

Discussion

16.	{ Secx}2+(cosecx^2)/(secx•cosecx)^2=
Answer» ANSWER: the answer is 1. *see the ATTACHMENT my FRIEND*

16.

{ Secx}2+(cosecx^2)/(secx•cosecx)^2=

Answer»

ANSWER:

the answer is 1.

see the ATTACHMENT my FRIEND

Discussion

17.	Given that √2 is irrational,Prove that(5+3√2) is an irrational plzzz do it step by step ..
Answer» Answer: to prove that (5+3√2) is an IRRATIONAL number let us assum that (5+3√2) is a RATIONAL number 5+3√2= a/b 3√2=a/b-5 3√2=a-5b/b √2=a-5b/3b here a,b are any Integers a-5b/3b are rational number but√2 is an irrational so were assumption is 5+3√2 is a rational number is wrong HENCE 5+3√2 is an irrational number

17.

Given that √2 is irrational,Prove that(5+3√2) is an irrational plzzz do it step by step ..

Answer»

Answer:

to prove that (5+3√2) is an IRRATIONAL number

let us assum that (5+3√2) is a RATIONAL number

5+3√2= a/b
3√2=a/b-5
3√2=a-5b/b
√2=a-5b/3b

here a,b are any Integers a-5b/3b are rational number but√2 is an irrational
so were assumption is 5+3√2 is a rational number is wrong
HENCE 5+3√2 is an irrational number

Discussion

18.	Insert two Rational number between 0.75 and 0.8
Answer» Answer: 0.76 ,0.77 Step-by-step EXPLANATION:

18.

Insert two Rational number between 0.75 and 0.8

Answer»

Answer:

0.76 ,0.77

Step-by-step EXPLANATION:

Discussion

19.	15, 270,0 37 write the number word from International
Answer» Fifteen Million two HUNDREDTH seven THOUSAND thirty seven. I HOPE this is useful..

19.

15, 270,0 37 write the number word from International

Answer»

Fifteen Million two HUNDREDTH seven THOUSAND thirty seven.

I HOPE this is useful..

Discussion

20.	the sum of a two digits number and the number obtained by reversing the order of its digits is 165. if the digits differ by 1, find the number
Answer» Answer: 87 Step-by-step explanation: let the tens DIGIT be x and ONES digit be y so, no. =10x+y according to question, 10x+y+10y+x=165 11x+11y=165 x+y=15 and x-y=1(given in question) so, by adding these two equation we GET x=8, y=7 so, no. THUS forming=87

20.

the sum of a two digits number and the number obtained by reversing the order of its digits is 165. if the digits differ by 1, find the number

Answer»

Answer:

87

Step-by-step explanation:

let the tens DIGIT be x and ONES digit be y

so, no. =10x+y

according to question,

10x+y+10y+x=165

11x+11y=165

x+y=15

and x-y=1(given in question)

so, by adding these two equation we GET x=8, y=7

so, no. THUS forming=87

Discussion

21.	In a quadrilateral ABCD, A = ( 2x + 4), B = (2x - 13)0, C = (3x + 11) and D = (4x - 5) . Find the measures of the angles.
Answer» Given that ABCD is a QUADRILATERAL we know that sum of all angles in a quadrilateral =360 A+B+C+D=360 2x+4+2x-13+3x+11+4x-5=360 11x-3=360 11x=360+3 11x=363 x=363/11 x=33 A=2x+4=2(33)+4=66+4=70 B=2x-13 = 2(33)-13 = 66-13 = 53 C=3X+11 = 3(33)+11 = 99+11 = 110 D=4X-5 = 4(33)-5 = 132-5 = 127

21.

In a quadrilateral ABCD, A = ( 2x + 4), B = (2x - 13)0, C = (3x + 11) and D = (4x - 5) . Find the measures of the angles.

Answer»

Given that

ABCD is a QUADRILATERAL

we know that

sum of all angles in a quadrilateral =360

A+B+C+D=360

2x+4+2x-13+3x+11+4x-5=360

11x-3=360

11x=360+3

11x=363

x=363/11

x=33

A=2x+4=2(33)+4=66+4=70

B=2x-13 = 2(33)-13 = 66-13 = 53

C=3X+11 = 3(33)+11 = 99+11 = 110

D=4X-5 = 4(33)-5 = 132-5 = 127

Discussion

22.	From point P, Sathya starts his travelling of 8m towards north direction and reaches point Q, which is 11m east of point R. From Q he takes a right turn of 6m to reach point S and then he takes left to move 7m to attain the destination point T.4. What is the shortest distance between point P and S? a) 8 b) 15 c) 10 d) 11 e) 12 5. What is the direction of R with respect to T? a) East b) West c) North west d) North east e) South west 6. If Z is 5m east of point T, then the direction of Z with respect to P? a) East b) West c) South west d) North east e) North west
Answer» Answer: 4. 10 5. e) south west 6. d) north EAST

22.

From point P, Sathya starts his travelling of 8m towards north direction and reaches point Q, which is 11m east of point R. From Q he takes a right turn of 6m to reach point S and then he takes left to move 7m to attain the destination point T.4. What is the shortest distance between point P and S? a) 8 b) 15 c) 10 d) 11 e) 12 5. What is the direction of R with respect to T? a) East b) West c) North west d) North east e) South west 6. If Z is 5m east of point T, then the direction of Z with respect to P? a) East b) West c) South west d) North east e) North west

Answer»

Answer:

4. 10

5. e) south west

6. d) north EAST

Discussion

23.	21. सर्वसमिका cosec-A = 1 + cotA को लागू करके सिद्ध कीजिए किcos A-sin A+1cos A+ sinA-1= cosec A + cot A.
Answer» ANSWER: *your* *answer* *ATTACHED* in *the* *PHOTO*

23.

21. सर्वसमिका cosec-A = 1 + cotA को लागू करके सिद्ध कीजिए किcos A-sin A+1cos A+ sinA-1= cosec A + cot A.

Answer»

ANSWER:

your answer ATTACHED in the PHOTO

Discussion

24.	Please answer the question correctly
Answer» ANSWER: if the NUMBER is ENDING with 2,3,7,8 so, it's not a PERFECT SQUARE

24.

Please answer the question correctly

Answer»

ANSWER:

if the NUMBER is ENDING with 2,3,7,8

so, it's not a PERFECT SQUARE

Discussion

25.	(-3)+(+7)+(+9)+(+6)
Answer» Step-by-step EXPLANATION: your ANSWER is , 19......

25.

(-3)+(+7)+(+9)+(+6)

Answer»

Step-by-step EXPLANATION:

your ANSWER is ,

19......

Discussion

26.	The distance between origin and (0,2)
Answer» ANSWER: Step-by-step EXPLANATION: (0,0) to (0,2) SQRT((2-0)^2+(0-0)^2) sqrt(2^2) 2

26.

The distance between origin and (0,2)

Answer»

ANSWER:

Step-by-step EXPLANATION:

(0,0) to (0,2)

SQRT((2-0)^2+(0-0)^2)

sqrt(2^2)

2

Discussion

27.	if the mark up rise price to selling price 3:5 and discount to cost price is 2:7 find the profit percentage
Answer» Answer: 3is the PROFIT PERCENT

27.

if the mark up rise price to selling price 3:5 and discount to cost price is 2:7 find the profit percentage

Answer»

Answer:

3is the PROFIT PERCENT

Discussion

28.	Find the multiplicative inverse of (-27)
Answer» ANSWER: here is your answer Step-by-step EXPLANATION: the multiplicative inverse of -27 is 27 *MARK ME AS BRAINLIEST PLEASE OR FOLLOW ME ✌️THANKS✌️*

28.

Find the multiplicative inverse of (-27)

Answer»

ANSWER:

here is your answer

Step-by-step EXPLANATION:

the multiplicative inverse of -27 is 27

MARK ME AS BRAINLIEST PLEASE OR FOLLOW ME ✌️THANKS✌️

Discussion

29.	Find the value of k, if x = -3, y = -8 is a solution of the equation 6x - 7y = k
Answer» Answer: by PUTTING the value of x and y in the given EQUATION :- 6(-3)-7(-8) = k -18-56 = k -74 = k

29.

Find the value of k, if x = -3, y = -8 is a solution of the equation 6x - 7y = k

Answer»

Answer:

by PUTTING the value of x and y in the given EQUATION :-

6(-3)-7(-8) = k

-18-56 = k

-74 = k

Discussion

30.	Using commas arrange the following numbers in Indian place vale chart. Also, writethem in words.(a) 2745950 (b) 14849500 (c) 52.333977 (a) 651200132Write the place value of each digit in the number 5,63,28,577Write all the numbers between:(a) 10,00,000 and 10,00,006(b) 28,14,909 and 28,14,9155. Skip by (a) hundreds (b) thousands and (c) lakhs to write the hexy two numbers after43,65,777
Answer» ANSWER: (a) 27,45,950 (B) 1,48,49,500

30.

Using commas arrange the following numbers in Indian place vale chart. Also, writethem in words.(a) 2745950 (b) 14849500 (c) 52.333977 (a) 651200132Write the place value of each digit in the number 5,63,28,577Write all the numbers between:(a) 10,00,000 and 10,00,006(b) 28,14,909 and 28,14,9155. Skip by (a) hundreds (b) thousands and (c) lakhs to write the hexy two numbers after43,65,777

Answer»

ANSWER:

(a) 27,45,950

(B) 1,48,49,500

Discussion

31.	Evan cuts off 110 cms from a 17 metre rope. How much of the rope is left?PLEASE ANSWER THE QUESTION WITH STATEMENT
Answer» Answer: Given, 17M ROPE = 1700cm LENGTH of rope CUT = 110 CM Rope left = 1700cm - 110cm = 1590 cm.

31.

Evan cuts off 110 cms from a 17 metre rope. How much of the rope is left?PLEASE ANSWER THE QUESTION WITH STATEMENT

Answer»

Answer:

Given, 17M ROPE = 1700cm

LENGTH of rope CUT = 110 CM

Rope left = 1700cm - 110cm = 1590 cm.

Discussion

32.	If P=X+1/X ,then P+1/P=?
Answer» Answer: 2X+X/X Step-by-step EXPLANATION: p+1/p=1+(1/P)

32.

If P=X+1/X ,then P+1/P=?

Answer»

Answer:

2X+X/X

Step-by-step EXPLANATION:

p+1/p=1+(1/P)

Discussion

33.	তলৰ পূৰণফলকেইটা নির্ণয় কনি(i) (x + 4) (x + 10)
Answer» ANSWER: PLEASE FOLLOW me I will follow BACK

33.

তলৰ পূৰণফলকেইটা নির্ণয় কনি(i) (x + 4) (x + 10)

Answer»

ANSWER:

PLEASE FOLLOW me I will follow BACK

Discussion

34.	2) Give the meanings of the following words from the passage:a) gently -b) pay back -
Answer» ANSWER: *GENTLY* - *INTELLIGENT*.

34.

2) Give the meanings of the following words from the passage:a) gently -b) pay back -

Answer»

ANSWER:

GENTLY - INTELLIGENT.

Discussion

35.	In relation to the adjoining figures, write the names of(a) 6 rays
Answer» RAYS in the given figure are: Xn Pn Rn Yn nl (Since, l and N are intersecting each other) Hope this is helpful to you Pls mark as brainliest Follow me and I'll FOLLOW you back

35.

In relation to the adjoining figures, write the names of(a) 6 rays

Answer»

RAYS in the given figure are:

Xn
Pn
Rn
Yn
nl (Since, l and N are intersecting each other)

Hope this is helpful to you

Pls mark as brainliest

Follow me and I'll FOLLOW you back

Discussion

36.	3/4×5/7+9/14-1/8×5/7
Answer» Answer: 15/28+9/14-5/56 15/28+18/28-5/56 33/28-5/56 66/56-5/56 61/56

36.

3/4×5/7+9/14-1/8×5/7

Answer»

Answer:

15/28+9/14-5/56

15/28+18/28-5/56

33/28-5/56

66/56-5/56

61/56

Discussion

37.	IF ALPHA AND BETA ARE THE ZEROES OF POLYNOMIAL X2+5X +3 FIND THE VALUE OF ALPHA-1 AND BETA-1
Answer» ANSWER: alpha and BETA are not correct HENCE after putting the alpha and beta we can't get 0

37.

IF ALPHA AND BETA ARE THE ZEROES OF POLYNOMIAL X2+5X +3 FIND THE VALUE OF ALPHA-1 AND BETA-1

Answer»

ANSWER:

alpha and BETA are not correct HENCE after putting the alpha and beta we can't get 0

Discussion

38.	Find the area of square having side 10cm
Answer» Step-by-step explanation: *Area* of *SQUARE* = *side². Side* if *square* = 10cm. *Area* of square = 10²= 100 SQ cm. *Hope* it *will* *help* *you. Follow* me *and* *mark* me as *the* *BRAINLIEST*

38.

Find the area of square having side 10cm

Answer»

Step-by-step explanation:

Area of SQUARE = side².

Side if square = 10cm.

Area of square = 10²= 100 SQ cm.

Hope it will help you.

Follow me and mark me as the BRAINLIEST

Discussion

39.	Realation between numbers and their HCF and LCM.1. For any two positive integers a and b, then relation between these numbers and their HCF and LCM.
Answer» ANSWER: HCF * LCM = a * b Step-by-step explanation: PRODUCT of LCM and HCF = product of two NUMBERS

39.

Realation between numbers and their HCF and LCM.1. For any two positive integers a and b, then relation between these numbers and their HCF and LCM.

Answer»

ANSWER:

HCF * LCM = a * b

Step-by-step explanation:

PRODUCT of LCM and HCF = product of two NUMBERS

Discussion

40.	Solve 17-(-45)+78
Answer» Answer: 17+45+78 140 is the answer please FOLLOW me I will follow BACK

40.

Solve 17-(-45)+78

Answer»

Answer:

17+45+78

140 is the answer

please FOLLOW me I will follow BACK

Discussion

41.	Solve it :find the area of shaded portion
Answer» Answer: 13 × 18 = 234 SQ m . 52 × 37 = 1924 sq m . 30 × 26 = 780 sq m. 44 × 29 = 1276 sq m. Hope it helps you plzzzzzzzzz mark as brainlist please follow me and I will follow back

41.

Solve it :find the area of shaded portion

Answer»

Answer:

13 × 18 = 234 SQ m .
52 × 37 = 1924 sq m .
30 × 26 = 780 sq m.
44 × 29 = 1276 sq m.

Hope it helps you

plzzzzzzzzz mark as brainlist

please follow me and I will follow back

Discussion

42.	A man facing west moves 5 meter towards his right to reach point P and takes a right turn of 4 meter to reach point Q, then he takes a right turn of 8 meter to reach point R. From point R he walks 3meters east direction to reach point S, Which is 3meters south of T.1. What is the direction of R with respect to P? a) East b) West c) South east d) North east e) North west 2. What is the distance between Man’s initial position and T? a) 6 b) 8 c) 9 d) 7 e) 5 3. What is the shortest distance between P and R? a) √(82) b) √(81) c) √(80) d) √(83) e) √(84)
Answer» Answer: 1.)SOUTH east 2.)7m 3.)√80 Step-by-step EXPLANATION:

42.

A man facing west moves 5 meter towards his right to reach point P and takes a right turn of 4 meter to reach point Q, then he takes a right turn of 8 meter to reach point R. From point R he walks 3meters east direction to reach point S, Which is 3meters south of T.1. What is the direction of R with respect to P? a) East b) West c) South east d) North east e) North west 2. What is the distance between Man’s initial position and T? a) 6 b) 8 c) 9 d) 7 e) 5 3. What is the shortest distance between P and R? a) √(82) b) √(81) c) √(80) d) √(83) e) √(84)

Answer»

Answer:

1.)SOUTH east

2.)7m

3.)√80

Step-by-step EXPLANATION:

Discussion

43.	In a class of 40 students, 1/5 of the total students like english and 2/5 of the total student like mathematics and remaining students like science.i how many students like english .॥ how many students like mathematics.iii what fraction of the total number of students like to study science
Answer» Answer: 1. 8 2.16 3. 2/5 Step-by-step explanation: 1/5×40=8 8 STUDENTS LIKE english 2/5×40=16 16 students like maths 2/5 of TOTAL students like SCIENCE

43.

In a class of 40 students, 1/5 of the total students like english and 2/5 of the total student like mathematics and remaining students like science.i how many students like english .॥ how many students like mathematics.iii what fraction of the total number of students like to study science

Answer»

Answer:

1. 8

2.16

3. 2/5

Step-by-step explanation:

1/5×40=8

8 STUDENTS LIKE english

2/5×40=16

16 students like maths

2/5 of TOTAL students like SCIENCE

Discussion

44.	A piece of wire 12m long is cut into three pieces. If the l3ngth of two pieces is 17/3 and 9/2 respectively, then find the length of the third piece
Answer» ANSWER: the LENGTH of the 3RD Wire = 1.9m Step-by-step explanation: *total length of the wire = 12m* *length of the 2 pieces = 17/3 & 9/2* *let the length of the 3rd pieces = x m* *x + 17/3 + 9/2 = 12m* *x = 12 - 17/3 - 9/2* *x = 12 - 5.6 - 4.5* *x = 1.9m (APPROX)*

44.

A piece of wire 12m long is cut into three pieces. If the l3ngth of two pieces is 17/3 and 9/2 respectively, then find the length of the third piece

Answer»

ANSWER:

the LENGTH of the 3RD Wire = 1.9m

Step-by-step explanation:

total length of the wire = 12m

length of the 2 pieces = 17/3 & 9/2

let the length of the 3rd pieces = x m

x + 17/3 + 9/2 = 12m

x = 12 - 17/3 - 9/2

x = 12 - 5.6 - 4.5

x = 1.9m (APPROX)

Discussion

45.	What is the nth term for the ap - 5,-2,1,....
Answer» PLS MARK as the BRAINLIEST

Discussion

46.	Find the value of 33% of 1200
Answer» ANSWER: 396 Step-by-step explanation: 33/100 ×1200 by CANCELLING both the ZEROES 33×12= 396

46.

Find the value of 33% of 1200

Answer»

ANSWER:

396

Step-by-step explanation:

33/100 ×1200

by CANCELLING both the ZEROES

33×12= 396

Discussion

47.	If tan a =1/3 prove that cosec squarea=1+cot squarea
Answer» ANSWER: *SEE the ATTACHMENT my FRIEND*

47.

If tan a =1/3 prove that cosec squarea=1+cot squarea

Answer»

ANSWER:

SEE the ATTACHMENT my FRIEND

Discussion

48.	26"1016182226283032363842465054*58
Answer» ANSWER: Thos quetion does not MAKE any sense. I don't understand the QUESTION. Idiot

48.

26"1016182226283032363842465054*58

Answer»

ANSWER:

Thos quetion does not MAKE any sense.

I don't understand the QUESTION. Idiot

Discussion

49.	If log of 9985 is 3.9995 then log of 0.09989 will be?
Answer» ANSWER: -1,00048 Step-by-step EXPLANATION: turn it into fraction = 9989/100000 LOG of 9989 - log of 100000 log of 9989 - 5 equals to -1,00048

49.

If log of 9985 is 3.9995 then log of 0.09989 will be?

Answer»

ANSWER:

-1,00048

Step-by-step EXPLANATION:

turn it into fraction = 9989/100000

LOG of 9989 - log of 100000

log of 9989 - 5 equals to -1,00048

Discussion

50.	Divide 20 into two parts such that the sum of the parts of the squares is 208.
Answer» ANSWER: x+y=20 and z=xy3 ⇒z=y3(20-y)=20y3-y4 ⇒ dz dy =60y2-4y3=0⇒4y2(15-y)=0 So, either y=0,ory=15 Now d2z dy2 =120y-12y2,bacauseAty=0, d2z dy2 >0 bacausey=0 is the POINT of minima and at y=15, d2z dy2 <0 ∵y=15 is the point of maximum. Hence the REQUIRED parts is (5,15) Step-by-step EXPLANATION: x+y=20 and z=xy3 ⇒z=y3(20-y)=20y3-y4 ⇒ dz dy =60y2-4y3=0⇒4y2(15-y)=0 So, either y=0,ory=15 Now d2z dy2 =120y-12y2,bacauseAty=0, d2z dy2 >0 bacausey=0 is the point of minima and at y=15, d2z dy2 <0 ∵y=15 is the point of maximum. Hence the required parts is (5,15)

50.

Divide 20 into two parts such that the sum of the parts of the squares is 208.

Answer»

ANSWER:

x+y=20 and z=xy3

⇒z=y3(20-y)=20y3-y4

⇒

dz

dy

=60y2-4y3=0⇒4y2(15-y)=0

So, either y=0,ory=15

Now

d2z

dy2

=120y-12y2,bacauseAty=0,

d2z

dy2

>0

bacausey=0 is the POINT of minima and at y=15,

d2z

dy2

<0

∵y=15 is the point of maximum.

Hence the REQUIRED parts is (5,15)

Step-by-step EXPLANATION:

x+y=20 and z=xy3

⇒z=y3(20-y)=20y3-y4

⇒

dz

dy

=60y2-4y3=0⇒4y2(15-y)=0

So, either y=0,ory=15

Now

d2z

dy2

=120y-12y2,bacauseAty=0,

d2z

dy2

>0

bacausey=0 is the point of minima and at y=15,

d2z

dy2

<0

∵y=15 is the point of maximum.

Hence the required parts is (5,15)

Discussion

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