332354 + Interview Questions in Secondary School in Math

1.	If alpha and Beta are the zeroes of the quadraticpolynomial f (x) = ax^2 + bx + c, find the value of1/alpha+1/beta
Answer» ANSWER: HOPE it HELPS #be BRAINLY

1.

If alpha and Beta are the zeroes of the quadraticpolynomial f (x) = ax^2 + bx + c, find the value of1/alpha+1/beta

Answer»

ANSWER:

HOPE it HELPS

#be BRAINLY

Discussion

2.	Find the zeroes of a polynomial x² -18x +12 .according to ch 2
Answer» ANSWER: x=0 0-18*0+12 0-0+12 12 I THINK that answer is 12 plz FOLLOW me BACK and LIKE my answer

2.

Find the zeroes of a polynomial x² -18x +12 .according to ch 2

Answer»

ANSWER:

x=0

0-18*0+12

0-0+12

12

I THINK that answer is 12

plz FOLLOW me BACK and LIKE my answer

Discussion

3.	Find p for which roots of 4x²+px+9=0 are equal
Answer» Answer: p=±12 Step-by-step EXPLANATION: A quadratic EQUATION ax²+bx+c=0 will have equal roots when b²-4ac=0 →p²-4(4)(9)=0 p²-144=0 p²=144 p=±12.

3.

Find p for which roots of 4x²+px+9=0 are equal

Answer»

Answer:

p=±12

Step-by-step EXPLANATION:

A quadratic EQUATION ax²+bx+c=0 will have equal roots when b²-4ac=0

→p²-4(4)(9)=0

p²-144=0

p²=144

p=±12.

Discussion

4.	यदि एक 12 पुरुष या 18 महिला एक काम को 7 दिन में कर सकते हैं तो 4 पुरुष और 8महिला उस काम को कितने दिन में करेंगे?
Answer» Answer: 15 DIN me............

4.

यदि एक 12 पुरुष या 18 महिला एक काम को 7 दिन में कर सकते हैं तो 4 पुरुष और 8महिला उस काम को कितने दिन में करेंगे?

Answer»

Answer:

15 DIN me............

Discussion

5.	Find the value of this
Answer» ANSWER: Step-by-step EXPLANATION:

5.

Find the value of this

Answer»

ANSWER:

Step-by-step EXPLANATION:

Discussion

6.	the measure of two adjacent angles of a 11gm are in the ratio 3:5 find the measure of each of the angle of the parallelogram
Answer» Step-by-step EXPLANATION: HEY buddy I don't know the ANSWER MAN

6.

the measure of two adjacent angles of a 11gm are in the ratio 3:5 find the measure of each of the angle of the parallelogram

Answer»

Step-by-step EXPLANATION:

HEY buddy I don't know the ANSWER MAN

Discussion

7.	write down the decimal expansion of distress number Rina question one above it has terminating decimal expansion 11/1250
Answer» ANSWER: NON TERMINATING non reapeating

7.

write down the decimal expansion of distress number Rina question one above it has terminating decimal expansion 11/1250

Answer»

ANSWER:

NON TERMINATING non reapeating

Discussion

8.	A bag contains coins of 25 paise and 50 paise such that the total amount is Rs 120. If the number of 25 paise coins is 3 times the number of 50 paisecoins, find their numbers respectively.
Answer» Answer: Step-by-step EXPLANATION: NUMBER of 25P COINS = 3n Number of 50p coins = n 25p ------------> Rs 1/4 50p -------------> Rs 1/2 3n/4 + n/2 = 120 5n/4 = 120 n = 96 25p ----> 288 50p ----> 96

8.

A bag contains coins of 25 paise and 50 paise such that the total amount is Rs 120. If the number of 25 paise coins is 3 times the number of 50 paisecoins, find their numbers respectively.

Answer»

Answer:

Step-by-step EXPLANATION:

NUMBER of 25P COINS = 3n

Number of 50p coins = n

25p ------------> Rs 1/4

50p -------------> Rs 1/2

3n/4 + n/2 = 120

5n/4 = 120

n = 96

25p ----> 288

50p ----> 96

Discussion

9.	Find the LCM of 12, 16, 24 and 36.Solution:
Answer» Answer: 126..is the answer Step-by-step explanation: 2* 12=6....16=8....24=12....36=28 26=3..8=4...12=6....28=14 2..3..4=2..6=3..14=7

9.

Find the LCM of 12, 16, 24 and 36.Solution:

Answer»

Answer:

126..is the answer

Step-by-step explanation:

2* 12=6....16=8....24=12....36=28

2*6=3..8=4...12=6....28=14

2*..3..4=2..6=3..14=7

Discussion

10.	By how much is the sum of 3216575 and 1624683 less than 1crore
Answer» the SUM of the given number is 4,841,258. Substracting the number from 1 CRORE we GET the value 5,158,742

10.

By how much is the sum of 3216575 and 1624683 less than 1crore

Answer»

the SUM of the given number is 4,841,258.

Substracting the number from 1 CRORE

we GET the value 5,158,742

Discussion

11.	Please guys solve this sum :evaluate:√175.2796
Answer» ANSWER: The answer is 13.239320

11.

Please guys solve this sum :evaluate:√175.2796

Answer»

ANSWER:

The answer is 13.239320

Discussion

12.	In the given figure,angle APB = angle CPB.By what condition is triangle APB congruent to triangle CPB
Answer» ANSWER: where are the ANGLES . PLEASE ASK the QUESTION properly!!!!

12.

In the given figure,angle APB = angle CPB.By what condition is triangle APB congruent to triangle CPB

Answer»

ANSWER:

where are the ANGLES . PLEASE ASK the QUESTION properly!!!!

Discussion

13.	Convert 0.45 into percentage PLESE TELL FAST
Answer» Step-by-step explanation: 0.45 is EQUIVALENT to ( 45/100 ) X 100 => 45%

13.

Convert 0.45 into percentage PLESE TELL FAST

Answer»

Step-by-step explanation:

0.45 is EQUIVALENT to

( 45/100 ) X 100

=> 45%

Discussion

14.	Give 5 examples of non linear equations in two variables
Answer» Answer: 1.x-y=-1 y=x2+1 2.x2+y2=10 x+(y+3)2=13

14.

Give 5 examples of non linear equations in two variables

Answer»

Answer:

1.x-y=-1

y=x*2+1

2.x*2+y*2=10

x+(y+3)*2=13

Discussion

15.	13. Name each of the following parallelograms.(1) The diagonals are equal and the adjacent sides are unequal.(ii) The diagonals are equal and the adjacent sides are equal.(iii) The diagonals are unequal and the adjacent sides are equal.(iv) All the sides are equal and one angle is 60°.(v) All the sides are equal and one angle is 90°.
Answer» ANSWER: 1. Rectangle 2. Square 3. rhombus 4. parallelogram 5. Trapezium please MARK this answer the BRAINLIEST

15.

13. Name each of the following parallelograms.(1) The diagonals are equal and the adjacent sides are unequal.(ii) The diagonals are equal and the adjacent sides are equal.(iii) The diagonals are unequal and the adjacent sides are equal.(iv) All the sides are equal and one angle is 60°.(v) All the sides are equal and one angle is 90°.

Answer»

ANSWER:

1. Rectangle

2. Square

3. rhombus

4. parallelogram

5. Trapezium

please MARK this answer the BRAINLIEST

Discussion

16.	All prime numbers upto 30
Answer» Answer: 2, 3 , 5 , 7, 11, 13, 17 , 19 , 23, 29 Step-by-step explanation: They all are prime numbers as they have only TWO factors 1 and NUMBER itself

16.

All prime numbers upto 30

Answer»

Answer:

2, 3 , 5 , 7, 11, 13, 17 , 19 , 23, 29

Step-by-step explanation:

They all are prime numbers as they have only TWO factors 1 and NUMBER itself

Discussion

17.	If ABCD is a square then show that the points A, B, C and D are concyclic.
Answer» Step-by-step explanation: hey BUDDY.... thank you for question... we know that ABCD is square... we ALSO know that A=90°,B=90°,C=90°,D=90° angle B + angle D = 180° as per cyclic quadrilateral theorem if sum of opposite SIDE is 180 then it is cyclic quadrilateral therefore ABCD is cyclic quadrilateral as B+ Dis 180 therefore ABCD is concyclic hope it helps mark me as brainliest

17.

If ABCD is a square then show that the points A, B, C and D are concyclic.

Answer»

Step-by-step explanation:

hey BUDDY....

thank you for question...

we know that ABCD is square...

we ALSO know that A=90°,B=90°,C=90°,D=90°

angle B + angle D = 180°

as per cyclic quadrilateral theorem

if sum of opposite SIDE is 180 then it is cyclic quadrilateral

therefore ABCD is cyclic quadrilateral

as B+ Dis 180

therefore ABCD is concyclic

hope it helps

mark me as brainliest

Discussion

18.	The sum of the digits of a two digit number is 15. If the number formed by reversing the digits is less than the original number by 27, find the original number.
Answer» ANSWER: OK I'll be LET you KNOW the SOLUTION

18.

The sum of the digits of a two digit number is 15. If the number formed by reversing the digits is less than the original number by 27, find the original number.

Answer»

ANSWER:

OK I'll be LET you KNOW the SOLUTION

Discussion

19.	If Apha beta are roots of x²+px +12=0& alpha -beta =1 then
Answer» ANSWER: Step-by-step EXPLANATION:

19.

If Apha beta are roots of x²+px +12=0& alpha -beta =1 then

Answer»

ANSWER:

Step-by-step EXPLANATION:

Discussion

20.	True /False4. For rationalising the denominator of theexpression 1/√12we multiply and divideby√25. The square roots of positive integers are always irrational
Answer» ANSWER: ylduduf Step-by-step EXPLANATION: hldlhdylsktstaydsrs

20.

True /False4. For rationalising the denominator of theexpression 1/√12we multiply and divideby√25. The square roots of positive integers are always irrational

Answer»

ANSWER:

ylduduf

Step-by-step EXPLANATION:

hldlhdylsktstaydsrs

Discussion

21.	3×3×5×7= ?plz tell me what is the answere
Answer» ANSWER: $\huge {\bold {\pink { Heya}}}$ ☑315

21.

3×3×5×7= ?plz tell me what is the answere

Answer»

ANSWER:

$\huge {\bold {\pink { Heya}}}$

☑315

Discussion

22.	Please solve this question ❔❔
Answer» a^3+b^3+c^3-3abc=(a+b+c)[a^2+b^2+c^2-ab-bc-ca] MULTIPLY and DIVIDE by 2 in RHS side =2(a+b+c)/2[a^2+b^2+c^2-ab-bc-ca] =(a+b+c)/2[2a^2+2b^2+2c^2-2ab-2bc-2ca] =(a+b+c)/2[(a^2-2ab+b^2)+(b^2-2bc-c^2)+(c^2-2ca+a^2] =(a+b+c)/2[(a-b)^2+(b-c)^2+(c-a)^2]

22.

Please solve this question ❔❔

Answer»

a^3+b^3+c^3-3abc=(a+b+c)[a^2+b^2+c^2-ab-bc-ca]

MULTIPLY and DIVIDE by 2 in RHS side

=2(a+b+c)/2[a^2+b^2+c^2-ab-bc-ca]

=(a+b+c)/2[2a^2+2b^2+2c^2-2ab-2bc-2ca]

=(a+b+c)/2[(a^2-2ab+b^2)+(b^2-2bc-c^2)+(c^2-2ca+a^2]

=(a+b+c)/2[(a-b)^2+(b-c)^2+(c-a)^2]

Discussion

23.	Read the passageand give question ans the your qustion
Answer» Question ⤵️⤵️ ▶️ Where Ajay Kumar Garg live? Answer ⤵️⤵️ ▶️ Ajay Kumar Garg live in Jaipur India. Question ⤵️⤵️ ▶️ In what age he suffered injury? Answer ⤵️⤵️ ▶️ He suffered injury at the age of three. Question ⤵️⤵️ ▶️ Was Ajay was treated? Answer ⤵️⤵️ ▶️ Yes he was treated but that treatment left him permanently deaf. Question ⤵️⤵️ ▶️ Was his parents tried several HOSPITALS to cure his impairment? Answer ⤵️⤵️ ▶️ Yes his parents tried several hospitals to cure his impairment but it don't cure him. Question ⤵️⤵️ ▶️ What his father bought to do that? Answer ⤵️⤵️ ▶️ His father bought him a paint set to play. Question ⤵️⤵️ ▶️Was Ajay paint happily? Answer ⤵️⤵️ ▶️ Yes he was paint happily. Question ⤵️⤵️ ▶️ Where he painted? Answer ⤵️⤵️ ▶️ He painted on the wall, floors etc. Question ⤵️⤵️ ▶️Was Ajay's father relaised that Ajay was talented in painting? Answer ⤵️⤵️ ▶️ Yes, his father relaised very soon that Ajay was talented in painting. Question ⤵️⤵️ ▶️ What happened when Ajay was five years old? Answer ⤵️⤵️ ▶️ When Ajay was five years old, a court artist of Dholpur (Rajasthan) Shri Sau, lal SAW his painting and was impressed by his work. Question ⤵️⤵️ ▶️ Was Shri Sai lal give training to Ajay? Answer ⤵️⤵️ ▶️ Yes Shri Sai lal give Training to Ajay.

24.	think of a number whose multiplicative inverse is the very same number itself ? do you think it is possible
Answer» ANSWER: The answer is 1/1=1 WHOSE MULTIPLICATIVE INVERSE is 1X1=1. Hope this help you.

24.

think of a number whose multiplicative inverse is the very same number itself ? do you think it is possible

Answer»

ANSWER:

The answer is 1/1=1 WHOSE MULTIPLICATIVE INVERSE is 1X1=1.

Hope this help you.

Discussion

25.	Find hcf 625,3125,15625
Answer» Hi there !! *Fundamental theorem of arithmetic :* Every composite number can be expressed as a PRODUCT of primes, and this factorisation is UNIQUE except for theorder in which the PRIME factors occur. H.C.F of 625,3125,15625 625= 5⁴ 3125 $= {5}^{5}$ 15625 $= {5}^{6}$ *H.C.F (Lowest POWER) = 5⁴* *= 625* Thankyou :)

25.

Find hcf 625,3125,15625

Answer»

Hi there !!

Fundamental theorem of arithmetic :

Every composite number can be expressed as a PRODUCT of primes, and this factorisation is UNIQUE except for theorder in which the PRIME factors occur.

H.C.F of 625,3125,15625

625= 5⁴

3125

$= {5}^{5}$

15625

$= {5}^{6}$

H.C.F (Lowest POWER) = 5⁴

= 625

Thankyou :)

Discussion

26.	Square root 15 plus square root 15
Answer» Answer: HEYA MATE there's your answer $\sqrt{15} + \sqrt{15} \\ 2 \sqrt{15}$ HOPE it helps you Thank you

26.

Square root 15 plus square root 15

Answer»

Answer:

HEYA MATE there's your answer

$\sqrt{15} + \sqrt{15} \\ 2 \sqrt{15}$

HOPE it helps you

Thank you

Discussion

27.	9x²-12x+3 by c/a method
Answer» Answer: 1/3 Step-by-step EXPLANATION: U₹68#582639(_#-₹85₹

27.

9x²-12x+3 by c/a method

Answer»

Answer:

1/3

Step-by-step EXPLANATION:

U₹68#582639(_#-₹85₹

Discussion

28.	Hiw can I avoid company of my bad friends without hurting them
Answer» ANSWER: DONT TALK with them.........

28.

Hiw can I avoid company of my bad friends without hurting them

Answer»

ANSWER:

DONT TALK with them.........

Discussion

29.	5 ^(x-3) x 3^2(x-3)-2 = 225X = ?
Answer» Step-by-step EXPLANATION: For CHECKING put 5 on x you will get 5^23^2. Which = 225*

29.

5 ^(x-3) x 3^2(x-3)-2 = 225X = ?

Answer»

Step-by-step EXPLANATION:

For CHECKING put 5 on x you will get 5^2*3^2. Which = 225

Discussion

30.	A girl buy lemon for 4 for rs3 and sold at 5 for rs 4. how much profit or loss she make
Answer» ANSWER: answer will be 0 OK my FRIEND

30.

A girl buy lemon for 4 for rs3 and sold at 5 for rs 4. how much profit or loss she make

Answer»

ANSWER:

answer will be 0 OK my FRIEND

Discussion

31.	If ABCD is a square then show that the points A, B, C and D are concyclic.
Answer» Answer with explanation: It is given that , ABCD is a SQUARE. Measure of each of interior Angles of Square is 90°. That is, ∠A=∠B=∠C=∠D=90° Now , sum of OPPOSITE angles ∠A + ∠C = 90° + 90° =180° Also, ∠B + ∠D == 90° + 90° =180° If you plot a Quadrilateral, passing through POINTS , A , B, C and D , Then, ∠A + ∠C=180° as WELL as , ∠B + ∠D=180° Showing that points , A, B, C and D are Con-cyclic.

31.

If ABCD is a square then show that the points A, B, C and D are concyclic.

Answer»

Answer with explanation:

It is given that , ABCD is a SQUARE.

Measure of each of interior Angles of Square is 90°.

That is, ∠A=∠B=∠C=∠D=90°

Now , sum of OPPOSITE angles

∠A + ∠C

= 90° + 90°

=180°

Also, ∠B + ∠D

== 90° + 90°

=180°

If you plot a Quadrilateral, passing through POINTS , A , B, C and D ,

Then, ∠A + ∠C=180°

as WELL as , ∠B + ∠D=180°

Showing that points , A, B, C and D are Con-cyclic.

Discussion

32.	What is the Roman value of 105
Answer» ANSWER: ROMAN NUMERALS: CV = 105.

32.

What is the Roman value of 105

Answer»

ANSWER:

ROMAN NUMERALS: CV = 105.

Discussion

33.	Definition of infinite A.P
Answer» ANSWER: infinite AP is defined as SN=a+(n-1)d where:- sn= SUM of terms a= first TERM n=no of terms d=common difference

33.

Definition of infinite A.P

Answer»

ANSWER:

infinite AP is defined as

SN=a+(n-1)d

where:-

sn= SUM of terms

a= first TERM

n=no of terms

d=common difference

Discussion

34.	Factorise x square - 24 x minus 180
Answer» ANSWER: Step-by-step EXPLANATION:

34.

Factorise x square - 24 x minus 180

Answer»

ANSWER:

Step-by-step EXPLANATION:

Discussion

35.	the measure of two adjacent angles of parallelogram are in the ratio 3:5 find the measure of each of the angle of the parallelogram
Answer» let the ratio be = 3x and 5x sum of adjacent ANGLES of PARALLELOGRAM is 180 A.T.Q 3x+5x=180 8x=180 x=180/8 x= 22.5 3x= 3× 22.5 =67.5 5x = 5× 22.5= 112.5 i HOPE this will help you

35.

the measure of two adjacent angles of parallelogram are in the ratio 3:5 find the measure of each of the angle of the parallelogram

Answer»

let the ratio be = 3x and 5x

sum of adjacent ANGLES of PARALLELOGRAM is 180

A.T.Q

3x+5x=180

8x=180

x=180/8

x= 22.5

3x= 3× 22.5 =67.5

5x = 5× 22.5= 112.5

i HOPE this will help you

Discussion

36.	Find the correct answer
Answer» ANSWER ans *(410^7)(610^-5)/(810^4)= (2410^2)/(810^4)= 310^-2 is the answer*

36.

Find the correct answer

Answer»

ANSWER

ans

(4*10^7)(6*10^-5)/(8*10^4)=

(24*10^2)/(8*10^4)=

3*10^-2 is the answer

Discussion

37.	❌ ❌are (a-b)² and a²-b² same?
Answer» ANSWER: No Step-by-step EXPLANATION: (a-b)²=a²+b²-2ab whereas a²-b²=(a+b)(a-b) Both are COMPLETELY DIFFERENT.

37.

❌ ❌are (a-b)² and a²-b² same?

Answer»

ANSWER:

No

Step-by-step EXPLANATION:

(a-b)²=a²+b²-2ab

whereas a²-b²=(a+b)(a-b)

Both are COMPLETELY DIFFERENT.

Discussion

38.	Insert three irrational number between 0.0001 and 0.001
Answer» Answer: 1. 0.0001111111111 2.0.00111111111111 3. 0.00100100100100

38.

Insert three irrational number between 0.0001 and 0.001

Answer»

Answer:

1. 0.0001111111111

2.0.00111111111111

3. 0.00100100100100

Discussion

39.	What is the difference between 1172 and 1162?
Answer» Answer: 10... *HOPE* it *HELPS*.....

39.

What is the difference between 1172 and 1162?

Answer»

Answer:

10...

HOPE it HELPS.....

Discussion

40.	Prove that 2-√3 is irrational number
Answer» ANSWER: here your answer dear 2-✓3 rational and IRRATIONAL = irrational NUMBER this is a irrational number

40.

Prove that 2-√3 is irrational number

Answer»

ANSWER:

here your answer dear

2-✓3

rational and IRRATIONAL = irrational NUMBER

this is a irrational number

Discussion

41.	Find the greatest common factor of the following monomials x^2y^3 and 2x^3y^2
Answer» ANSWER: the HCF should be ;. x^2y^2

41.

Find the greatest common factor of the following monomials x^2y^3 and 2x^3y^2

Answer»

ANSWER:

the HCF should be ;. x^2y^2

Discussion

42.	4^444please help me guys my teacher is asking a lot
Answer» ELLO USER !!!!!!! Here is your answer, ====================================== 2.063651e+267 ======================================== HOPE THIS HELPS YOUU :) AND STAY BLESSED.

42.

4^444please help me guys my teacher is asking a lot

Answer»

ELLO USER !!!!!!!

Here is your answer,

======================================

2.063651e+267

========================================

HOPE THIS HELPS YOUU :)

AND STAY BLESSED.

Discussion

43.	(6x^4-14x^3-17x^2-11x+8)÷(3x^2-4x-2) . Find the quotient and remainder.
Answer» ANSWER: QUOTIENT is EQUAL to 2x^2-2x-7 Remainder is equal to -43x-6

43.

(6x^4-14x^3-17x^2-11x+8)÷(3x^2-4x-2) . Find the quotient and remainder.

Answer»

ANSWER:

QUOTIENT is EQUAL to 2x^2-2x-7

Remainder is equal to -43x-6

Discussion

44.	If a=64.00 and b=64.89 then find the value of c
Answer» Step-by-step EXPLANATION: If ,a=64.00 b=64.89 So, c=64.89 + 0.89 65.78 Therefore, c=65.78

44.

If a=64.00 and b=64.89 then find the value of c

Answer»

Step-by-step EXPLANATION:

If ,a=64.00

b=64.89

So,

c=64.89

+ 0.89

65.78

Therefore,

c=65.78

Discussion

45.	Of two5. Express each of the following as the sumconsecutive natural numbersa) 13(i) 199
Answer» *Here* is ur *answer* - a) 6+7=13. LET 1st no. be x and the second be x+1 then , = x+x+1=13 = 2x+1 = 13 2x= 13-1 2x= 12 x=12/2 = 6 . 1st no. = x = 6 2nd no. = x+1 = 6+1=7 . same with second . b) 99 + 100 = 199 . 2x+1 = 199 2x= 199-1 2x = 198 x = 198/2 . x = 99. (1st no. ) x+1 = 99+1=100 .(2nd no ) *plz* *mark* it as *BRAINLIEST* . *thanks* !

45.

Of two5. Express each of the following as the sumconsecutive natural numbersa) 13(i) 199

Answer»

Here is ur answer -

a) 6+7=13.

LET 1st no. be x and the second be x+1

then ,

= x+x+1=13

= 2x+1 = 13

2x= 13-1

2x= 12

x=12/2 = 6 .

1st no. = x = 6

2nd no. = x+1 = 6+1=7 .

same with second .

b) 99 + 100 = 199 .

2x+1 = 199

2x= 199-1

2x = 198

x = 198/2 .

x = 99. (1st no. )

x+1 = 99+1=100 .(2nd no )

plz mark it as BRAINLIEST .

thanks !

Discussion

46.	21. Solve the following for x:2 3 3 53 6 18x x x     22. There are 100 multiple choice questions in an examination. For every correct answer the student gets 5 marks and for every wrong answer 2 marks are deducted from the total score of correct answers. A student attempts all questions and his total score is 220.How many questions did he attempt correctly?23. ABCD is a rectangle. Find the value of ‘x’, ’y’ and ‘z’. Explain your answer with proper reasons.24. The measures of two angles of a quadrilateral are 135˚ and 45˚. The third angle is equal to half of the fourth angle. Find the measure of the third and the fourth angles.25. Simplify: 91053+ 1516528154
Answer» Marks GIVEN for EVERY CORRECT answers = 5×60=300 Marks deducted for in correct ANSWER = 40× 2=80 300 - 80 = 220 She ATTEMPTED 60 answers correctly Hope it is correct

46.

21. Solve the following for x:2 3 3 53 6 18x x x     22. There are 100 multiple choice questions in an examination. For every correct answer the student gets 5 marks and for every wrong answer 2 marks are deducted from the total score of correct answers. A student attempts all questions and his total score is 220.How many questions did he attempt correctly?23. ABCD is a rectangle. Find the value of ‘x’, ’y’ and ‘z’. Explain your answer with proper reasons.24. The measures of two angles of a quadrilateral are 135˚ and 45˚. The third angle is equal to half of the fourth angle. Find the measure of the third and the fourth angles.25. Simplify: 91053+ 1516528154

Answer»

Marks GIVEN for EVERY CORRECT answers = 5×60=300

Marks deducted for in correct ANSWER = 40× 2=80

300 - 80 = 220

She ATTEMPTED 60 answers correctly

Hope it is correct

Discussion

47.	The coefficient of x in the product of (x-1) (1-2x) I is 1) -3.. 2) 3. 3) -2. 4)1.
Answer» Answer: 2) 3 Step-by-step explanation: (x - 1)(1 - 2X) = x - 2x² - 1 + 2x = -2x² + 3x - 1 Coefficient of x = 3 Hope this HELPS! :)

47.

The coefficient of x in the product of (x-1) (1-2x) I is 1) -3.. 2) 3. 3) -2. 4)1.

Answer»

Answer:

2) 3

Step-by-step explanation:

(x - 1)(1 - 2X) = x - 2x² - 1 + 2x

= -2x² + 3x - 1

Coefficient of x = 3

Hope this HELPS! :)

Discussion

48.	If alpha and beta are the roots of a quadratic equation x square - 3x + 5 = 0then the equation whose roots are ( alpha square minus 3alpha plus 7) and ( beta square minus 3beta plus 7) is .........
Answer» HI........HERES my phone no. 9101490727 i will SEND you the answer in whatsapp itself.

48.

If alpha and beta are the roots of a quadratic equation x square - 3x + 5 = 0then the equation whose roots are ( alpha square minus 3alpha plus 7) and ( beta square minus 3beta plus 7) is .........

Answer»

HI........HERES my phone no. 9101490727

i will SEND you the answer in whatsapp itself.

Discussion

49.	Find the value of 5/11 - -8/23
Answer» 5/11-(-8/23) TAKING the L.C.M Of 11 and 23 =253 Now, 235/253 - (-118/23) =115/253 - (-88/23) =115/253 + 88/23 =193/253

49.

Find the value of 5/11 - -8/23

Answer»

5/11-(-8/23)

TAKING the L.C.M Of 11 and 23 =253

Now,

23*5/253 - (-11*8/23)

=115/253 - (-88/23)

=115/253 + 88/23

=193/253

Discussion

50.	Find cofficent of x in 3-4+6(2x+8)
Answer» Step-by-step EXPLANATION: To FIND COEFFICIENT of X In the equation 3x³-4x²+6(2x+8) =3x³-4x²+12x+48 so the coefficient of x is 12 Thank you Regards

50.

Find cofficent of x in 3-4+6(2x+8)

Answer»

Step-by-step EXPLANATION:

To FIND COEFFICIENT of X In the equation

3x³-4x²+6(2x+8)

=3x³-4x²+12x+48

so the coefficient of x is 12

Thank you

Regards

Discussion

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