332354 + Interview Questions in Secondary School in Math

1.	97. If x means +, + means - ; +means x; and - means +, then28x8+8-4+2 = ?
Answer» Step-by-step EXPLANATION: WAIT a. MINUTE... 28+8-8+4-2=30

1.

97. If x means +, + means - ; +means x; and - means +, then28x8+8-4+2 = ?

Answer»

Step-by-step EXPLANATION:

28+8-8+4-2=30

2.	Find the value of log√x
Answer» $log( \sqrt{x} ) \\ = log( {x}^{ \frac{1}{2} } ) \\ = \frac{1}{2} log(x)$

Discussion

3.	the radius and the height of a right circular cylinder are equal its total surgace area is 616sq.cm . Find a. radius. b. area of its base c. area of the curved surface
Answer» RADIUS = 14 cm, Area of its base = 44 cm², Area of curved surface = 88 cm². Explanation: Given: Radius and height of a right circular cylinder are equal to total surface area = 616 cm² Radius = ? Area of its base = ? Area of curved surface = ? Formula: Area of right circular cylinder = πr² Surface area of cylinder = πr² 616 = πr² $r^{2}=\frac{616\times 7}{22}$ r² = 28 x 7 r² = 196 r = 14 cm Area of base = πr² = $\frac{22}{7}\times 14$ = 44 cm² Area of right circular cylinder = πr²h ⇒ $\frac{22}{7}\times 14^{2}\times h = 616$ , h = 1 Area of curved surface of the cylinder = 2πrh = 2 x π x 14 x 1 = 88 cm². To know more: the area of the base of a right circular cylinder is 616 cm^2 and its ... brainly.in/question/2356626

3.

the radius and the height of a right circular cylinder are equal its total surgace area is 616sq.cm . Find a. radius. b. area of its base c. area of the curved surface

Answer»

RADIUS = 14 cm, Area of its base = 44 cm², Area of curved surface = 88 cm².

Explanation:

Given: Radius and height of a right circular cylinder are equal to total surface area = 616 cm²

Radius = ?

Area of its base = ?

Area of curved surface = ?

Formula: Area of right circular cylinder = πr²

Surface area of cylinder = πr²

616 = πr²

$r^{2}=\frac{616\times 7}{22}$

r² = 28 x 7

r² = 196

r = 14 cm

Area of base = πr² = $\frac{22}{7}\times 14$

= 44 cm²

Area of right circular cylinder = πr²h ⇒ $\frac{22}{7}\times 14^{2}\times h = 616$ , h = 1

Area of curved surface of the cylinder = 2πrh

= 2 x π x 14 x 1

= 88 cm².

To know more:

the area of the base of a right circular cylinder is 616 cm^2 and its ...

brainly.in/question/2356626

Discussion

4.	117a³b²×3/13ab³ = ? solve the quesion?
Answer» Answer: 27a²/b Step-by-step EXPLANATION: SEE the screenshot Thx and FOLLOW me

4.

117a³b²×3/13ab³ = ? solve the quesion?

Answer»

Answer:

27a²/b

Step-by-step EXPLANATION:

SEE the screenshot

Thx and FOLLOW me

Discussion

5.	It is Algebraic Operation chapter if you don't know plz don't write rubish answer plz and help me fast with process and statement
Answer» 27 - 3x Step-by-step explanation: ${\underline{{\text{Given}}}}$ Dipuda sold (2x + 19) newspaper Today. Dipuda sold (5x - 8) newspaper Yesterday. ${\underline{{\text{To Find:}}}}$ How MANY newspaper did Dipuda the sold today more than yesterday? ${\underline{{\text{Solution:}}}}$ ANALYSING the question, I GET, You have to do nothing just subtract the yesterday sold from today sold and you will get the answer. So, Today Sold - Yesterday Sold = (2x+19) - (5x - 8) = 2x+19 - 5x + 8 = 27 - 3x Therefore, Today Dipuda sold (27 - 3x) paper more than yesterday.

5.

It is Algebraic Operation chapter if you don't know plz don't write rubish answer plz and help me fast with process and statement

Answer»

27 - 3x

Step-by-step explanation:

${\underline{{\text{Given}}}}$

Dipuda sold (2x + 19) newspaper Today.

Dipuda sold (5x - 8) newspaper

Yesterday.

${\underline{{\text{To Find:}}}}$

How MANY newspaper did Dipuda the

sold today more than yesterday?

${\underline{{\text{Solution:}}}}$

ANALYSING the question, I GET,

You have to do nothing just subtract the

yesterday sold from today sold and you

will get the answer.

So,

Today Sold - Yesterday Sold

= (2x+19) - (5x - 8)

= 2x+19 - 5x + 8

= 27 - 3x

Therefore, Today Dipuda sold (27 - 3x)

paper more than yesterday.

Discussion

6.	(X square + 4)square
Answer» BASICALLY what you are asking is $(x {}^{2} + 4) {}^{2}$ ASSUME $x {}^{2} = a \\ and \: 4 = b$ then the new equation will be as follows $(a + b) {}^{2}$ which is equal to $a {}^{2} + b {}^{2} + 2ab$ SUBSTITUTING values of a and b $(x {}^{2} ) {}^{2} + 4 {}^{2} + 2(x {}^{2} )(4)$ $we \: get \\ x {}^{4} + 16 + 8x {}^{2}$ This is your ANSWER

6.

(X square + 4)square

Answer»

BASICALLY what you are asking is

$(x {}^{2} + 4) {}^{2}$

ASSUME

$x {}^{2} = a \\ and \: 4 = b$

then the new equation will be as follows

$(a + b) {}^{2}$

which is equal to

$a {}^{2} + b {}^{2} + 2ab$

SUBSTITUTING values of a and b

$(x {}^{2} ) {}^{2} + 4 {}^{2} + 2(x {}^{2} )(4)$

$we \: get \\ x {}^{4} + 16 + 8x {}^{2}$

This is your ANSWER

Discussion

7.	Classify that the following numbers are rational or irrational numbers with justification
Answer» Answer: 1 . 14 2. 5832 3. 0.16 answer only for 3 QUESTION

7.

Classify that the following numbers are rational or irrational numbers with justification

Answer»

Answer:

1 . 14

2. 5832

3. 0.16

answer only for 3 QUESTION

Discussion

8.	X3+5x2-4x by factor therme
Answer» ANSWER: Step-by-step EXPLANATION:

8.

X3+5x2-4x by factor therme

Answer»

ANSWER:

Step-by-step EXPLANATION:

Discussion

9.	find the area of the triangle formed by joining the mid point of the sides of a triangle formed with coordinates A(-4, 3), B(2, 3) and C(4, 5)
Answer» HENCE area of triangle ABC = 6 SQ. UNTS

9.

find the area of the triangle formed by joining the mid point of the sides of a triangle formed with coordinates A(-4, 3), B(2, 3) and C(4, 5)

Answer»

HENCE area of triangle ABC = 6 SQ. UNTS

Discussion

10.	Simplify (√3+1√3-1 + √2+1√2-1 + √3-1√3+1 + √2-1√2+1) solve
Answer» Step-by-step EXPLANATION: (√3+1)(√3-1) + (√2+1)(√2-1) + (√3+1)(√3-1) + (√2+1)(√2-1) = 3-1 + 2-1 + 3-1 + 2-1 = 6

10.

Simplify (√3+1√3-1 + √2+1√2-1 + √3-1√3+1 + √2-1√2+1) solve

Answer»

Step-by-step EXPLANATION:

(√3+1)(√3-1) + (√2+1)(√2-1) + (√3+1)(√3-1) + (√2+1)(√2-1)

= 3-1 + 2-1 + 3-1 + 2-1

= 6

Discussion

11.	G.c.d (a,b) =32and lcm (a,b)= 48 then statement mcq
Answer» Given: (i) The HCF of a and B is = 32 (ii) The LCM of a and b is = 48 To find: (i) Since the question is incomplete, I suppose we have to WIND the PRODUCT of the two numbers. Solution: We know that for any two numbers, X and y, the product of them is equal to the product of their HCF and LCM. Here, HCF of a and b = 32 and, LCM of a and b = 48. So, a * b = HCF (of a and b) * LCM (of a and b) ⇒ ab = 3248 ⇒ ab = 1536 So, the product of the to numbers, ab equals to 1536.*

11.

G.c.d (a,b) =32and lcm (a,b)= 48 then statement mcq

Answer»

Given:

(i) The HCF of a and B is = 32

(ii) The LCM of a and b is = 48

To find:

(i) Since the question is incomplete, I suppose we have to WIND the PRODUCT of the two numbers.

Solution:

We know that for any two numbers, X and y, the product of them is equal to the product of their HCF and LCM.

Here, HCF of a and b = 32 and,

LCM of a and b = 48.

So, a * b = HCF (of a and b) * LCM (of a and b)

⇒ ab = 32*48

⇒ ab = 1536

So, the product of the to numbers, ab equals to 1536.

Discussion

12.	The reciprocal of a proper fraction can be aninproper fraction and reciprocal of an improper fractioncan be a proper fraction. Justify with examples
Answer» Step-by-step explanation: 3/5 is a PROPER FRACTION it's RECIPROCAL i.e. 5/3 is IMPROPER fraction similarly 7/2 is improper fraction it's reciprocal i.e. 2/7 is proper fraction

12.

The reciprocal of a proper fraction can be aninproper fraction and reciprocal of an improper fractioncan be a proper fraction. Justify with examples

Answer»

Step-by-step explanation:

3/5 is a PROPER FRACTION

it's RECIPROCAL i.e. 5/3 is IMPROPER fraction

similarly 7/2 is improper fraction

it's reciprocal i.e. 2/7 is proper fraction

Discussion

13.	8/3+28/9in decimal answer step by step
Answer» ANSWER: $\frac{8}{3} + \frac{28}{9} \\ = \frac{3 \times 3 + 28}{9} \\ = \frac{9 + 28}{9} \\ = \frac{37}{9} \\ = 4.1$

13.

8/3+28/9in decimal answer step by step

Answer»

ANSWER:

$\frac{8}{3} + \frac{28}{9} \\ = \frac{3 \times 3 + 28}{9} \\ = \frac{9 + 28}{9} \\ = \frac{37}{9} \\ = 4.1$

Discussion

14.	(x-3)³+5=x³+7x²-1plz answer
Answer» Correct Question: Prove the below EQUATION as quadratic: (x - 3)³+ 5 = x³ + 7x² - 1 Solution: Given equation: (x - 3)³ + 5=x³ + 7x²- 1 Identity to be used to split it: (x - y)³ = x³ - y³ - 3x²y + 3xy² Spilt the term using this identity: (x - 3)³ = x³ - 27 - 3(x²)(3) + 3(x)(9) = x³ - 27 - 9x² + 27X Put this value in the equation: (x - 3)³ + 5 = x³ + 7x² - 1 => x³ - 27 - 9x² + 27x + 5 = x³ + 7x² - 1 Take every term to LHS [Note that the signs change while transposing]: => x³ - 27 - 9x² + 27x + 5 - x³ - 7x² + 1 = 0 => -16x² + 27x - 21 = 0 => -(16x² - 27x + 21) = 0 => 16x² - 27x + 21 = 0 Note that a quadratic equation is an equation with degree 2. Since this simplified equation has a degree 2, it is a quadratic equation.

14.

(x-3)³+5=x³+7x²-1plz answer

Answer»

Correct Question:

Prove the below EQUATION as quadratic:

(x - 3)³+ 5 = x³ + 7x² - 1

Solution:

Given equation:

(x - 3)³ + 5=x³ + 7x²- 1

Identity to be used to split it:

(x - y)³ = x³ - y³ - 3x²y + 3xy²

Spilt the term using this identity:

(x - 3)³ = x³ - 27 - 3(x²)(3) + 3(x)(9)

= x³ - 27 - 9x² + 27X

Put this value in the equation:

(x - 3)³ + 5 = x³ + 7x² - 1

=> x³ - 27 - 9x² + 27x + 5 = x³ + 7x² - 1

Take every term to LHS [Note that the signs change while transposing]:

=> x³ - 27 - 9x² + 27x + 5 - x³ - 7x² + 1 = 0

=> -16x² + 27x - 21 = 0

=> -(16x² - 27x + 21) = 0

=> 16x² - 27x + 21 = 0

Note that a quadratic equation is an equation with degree 2.

Since this simplified equation has a degree 2, it is a quadratic equation.

Discussion

15.	3.2463636...is1)a terminting decimal2)a rational number3)a non-terminating repeating decimal number4)2 and 3
Answer» ANSWER: TERMINATING DECIMAL Step-by-step EXPLANATION:

15.

3.2463636...is1)a terminting decimal2)a rational number3)a non-terminating repeating decimal number4)2 and 3

Answer»

ANSWER:

TERMINATING DECIMAL

Step-by-step EXPLANATION:

Discussion

16.	Is 56/-36 is equal to -36/56 true or false
Answer» Step-by-step EXPLANATION: FALSE ...............

16.

Is 56/-36 is equal to -36/56 true or false

Answer»

Step-by-step EXPLANATION:

FALSE ...............

Discussion

17.	Find a quadric polynomial with given no. as the sum and product it's zero.1,1
Answer» Step-by-step EXPLANATION: a+b=1 a.b=0 (a-b)^2=(a+b)^2 _4ab (a-b)^2=1-0 a-b=1 ,a=1 b=0 X^2 - (a+b)x +ab=0 x^2-x=0

17.

Find a quadric polynomial with given no. as the sum and product it's zero.1,1

Answer»

Step-by-step EXPLANATION:

a+b=1

a.b=0

(a-b)^2=(a+b)^2 _4ab

(a-b)^2=1-0

a-b=1

,a=1 b=0

X^2 - (a+b)x +ab=0

x^2-x=0

Discussion

18.	Find the range of each of the following data sets:9, 3, 3, 4, 8, 3, 5,9,7 I WILL MARK YOU BRAINLIEST FOR THE RIGHT ANSWER
Answer» Answer: 3 Step-by-step explanation: 3,3,3,4,8,5,7,9 here THREE is REPEAT NUMBER of TIMES

18.

Find the range of each of the following data sets:9, 3, 3, 4, 8, 3, 5,9,7 I WILL MARK YOU BRAINLIEST FOR THE RIGHT ANSWER

Answer»

Answer:

3

Step-by-step explanation:

3,3,3,4,8,5,7,9

here THREE is REPEAT NUMBER of TIMES

Discussion

19.	Root1-sin theta/1+sin theta=sec theta-tan theta
Answer» HOPE this helps you Mark as BRAINLIEST ANSWER PLEASE

19.

Root1-sin theta/1+sin theta=sec theta-tan theta

Answer»

HOPE this helps you

Mark as BRAINLIEST ANSWER PLEASE

Discussion

20.	If one zero of the quadratic polynomial x2 + 3x + k is 2, then find the value of k
Answer» Answer: 2^2 + 3*2 + K 4 + 6 + k 10 + k k = -10 hope it helps you

20.

If one zero of the quadratic polynomial x2 + 3x + k is 2, then find the value of k

Answer»

Answer:

2^2 + 3*2 + K

4 + 6 + k

10 + k

k = -10

hope it helps you

Discussion

21.	Find arational number between10 and 11.
Answer» Answer: The RATIONAL number between 10 and 11 is 105/10. I HOPE IT WILL HELP YOU.

21.

Find arational number between10 and 11.

Answer»

Answer:

The RATIONAL number between 10 and 11 is 105/10.

I HOPE IT WILL HELP YOU.

Discussion

22.	Show That Using principles can someone pls help
Answer» ANSWER: Step-by-step EXPLANATION: TROTTERS a GREAT WEEK to be the

22.

Show That Using principles can someone pls help

Answer»

ANSWER:

Step-by-step EXPLANATION: TROTTERS a GREAT WEEK to be the

Discussion

23.	Plz answer the question in factorization method. question 7th
Answer» If this solution really helps you Than PLZ MARK me as brainlist And follow me I will follow U BACK

23.

Plz answer the question in factorization method. question 7th

Answer»

If this solution really helps you

Than PLZ MARK me as brainlist

And follow me

I will follow U BACK

Discussion

24.	Express √x+log√x/√x
Answer» ANSWER: √x Step-by-step EXPLANATION: Hope this HELPS you Mark as Brainliest answer please

24.

Express √x+log√x/√x

Answer»

ANSWER:

√x

Step-by-step EXPLANATION:

Hope this HELPS you

Mark as Brainliest answer please

Discussion

25.	5. What must be subtracted from p(x) = 8x4 + 14x3 – 2x2 +7x -8 so thatthe resulting polynomial is exactly divisible by g(x) = 4x2 + 3x -2 ?
Answer» ANSWER: DIVIDE p(X) by g(x). U *will* *FIND* ur *answer... #followme ❤️*

25.

5. What must be subtracted from p(x) = 8x4 + 14x3 – 2x2 +7x -8 so thatthe resulting polynomial is exactly divisible by g(x) = 4x2 + 3x -2 ?

Answer»

ANSWER:

DIVIDE p(X) by g(x).

U will FIND ur answer...

#followme ❤️

Discussion

26.	a particle is moving in a circle of diameter 28 m.calculate the distance and displacement when it completed 3 revolution
Answer» ANSWER: the DISPLACEMENT is 0m the DISTANCE is 84M

26.

a particle is moving in a circle of diameter 28 m.calculate the distance and displacement when it completed 3 revolution

Answer»

ANSWER:

the DISPLACEMENT is 0m

the DISTANCE is 84M

Discussion

27.	Two dice are thrown together find the probability that the product of the numbers at the top of the dice is
Answer» ANSWER: 6 Step-by-step EXPLANATION:

27.

Two dice are thrown together find the probability that the product of the numbers at the top of the dice is

Answer»

ANSWER: 6

Step-by-step EXPLANATION:

Discussion

28.	The sum to n terms of a series is 3nsquare+2n. show that the series is an AP.find the first term and the common difference.
Answer» ANSWER: ............ SORRY....

28.

The sum to n terms of a series is 3nsquare+2n. show that the series is an AP.find the first term and the common difference.

Answer»

ANSWER:

............ SORRY....

Discussion

29.	A cube plus b cube plus c cube=?
Answer» *ANSWER* :- = (a + b + C) (a^2 + b^2 + c^2 + ab + bc + CA) *FOLLOW*

29.

A cube plus b cube plus c cube=?

Answer»

ANSWER :-

= (a + b + C) (a^2 + b^2 + c^2 + ab + bc + CA)

FOLLOW

Discussion

30.	the circumference of a right circular clinder is 88cm^2and its height is 15 cm . find the volume of cylinder
Answer» Step-by-step EXPLANATION: the the VOLUME of right CIRCULAR CYLINDER is 1150

30.

the circumference of a right circular clinder is 88cm^2and its height is 15 cm . find the volume of cylinder

Answer»

Step-by-step EXPLANATION:

the the VOLUME of right CIRCULAR CYLINDER is 1150

Discussion

31.	(x-3)³+5=x³+7x²-1plz answer
Answer» Correct Question: Prove the below equation as quadratic: (x - 3)³+ 5 = x³ + 7x² - 1 Solution: Given equation: (x - 3)³ + 5=x³ + 7x²- 1 Identity to be used to split it: (x - y)³ = x³ - y³ - 3x²y + 3xy² Spilt the term using this identity: (x - 3)³ = x³ - 27 - 3(x²)(3) + 3(x)(9) = x³ - 27 - 9x² + 27x Put this value in the equation: (x - 3)³ + 5 = x³ + 7x² - 1 => x³ - 27 - 9x² + 27x + 5 = x³ + 7x² - 1 Take every term to LHS [Note that the SIGNS change while transposing]: => x³ - 27 - 9x² + 27x + 5 - x³ - 7x² + 1 = 0 => -16x² + 27x - 21 = 0 => -(16x² - 27x + 21) = 0 => 16x² - 27x + 21 = 0 Note that a quadratic equation is an equation with DEGREE 2. Since this simplified equation has a degree 2, it is a quadratic equation.

31.

(x-3)³+5=x³+7x²-1plz answer

Answer»

Correct Question:

Prove the below equation as quadratic:

(x - 3)³+ 5 = x³ + 7x² - 1

Solution:

Given equation:

(x - 3)³ + 5=x³ + 7x²- 1

Identity to be used to split it:

(x - y)³ = x³ - y³ - 3x²y + 3xy²

Spilt the term using this identity:

(x - 3)³ = x³ - 27 - 3(x²)(3) + 3(x)(9)

= x³ - 27 - 9x² + 27x

Put this value in the equation:

(x - 3)³ + 5 = x³ + 7x² - 1

=> x³ - 27 - 9x² + 27x + 5 = x³ + 7x² - 1

Take every term to LHS [Note that the SIGNS change while transposing]:

=> x³ - 27 - 9x² + 27x + 5 - x³ - 7x² + 1 = 0

=> -16x² + 27x - 21 = 0

=> -(16x² - 27x + 21) = 0

=> 16x² - 27x + 21 = 0

Note that a quadratic equation is an equation with DEGREE 2.

Since this simplified equation has a degree 2, it is a quadratic equation.

Discussion

32.	The sum of to size of a triangle is always______then a third side
Answer» Answer: greater Step-by-step EXPLANATION: The sum of to size of a triangle is always greater then a THIRD SIDE

32.

The sum of to size of a triangle is always______then a third side

Answer»

Answer:

greater

Step-by-step EXPLANATION:

The sum of to size of a triangle is always greater then a THIRD SIDE

Discussion

33.	The distance between the moon and the earth is approximately 384000000 miles exppress it in standard form
Answer» Answer: 384000000= 3.84×10 raised to the power 8. I COULD not write this in exponential FORM as the only powers GIVEN were 2 and 3. Hope you GOT your answer. PLEASE MARK MY ANSWER AS BRAINLIEST.

33.

The distance between the moon and the earth is approximately 384000000 miles exppress it in standard form

Answer»

Answer:

384000000= 3.84×10 raised to the power 8.

I COULD not write this in exponential FORM as the only powers GIVEN were 2 and 3.

Hope you GOT your answer.

PLEASE MARK MY ANSWER AS BRAINLIEST.

Discussion

34.	PLEASE ANY MY QUESTION URGENTDeepak was to get a 50% hike in his pay but the computer operator wrongly typed the figure as 80% and printed the new pay slip. He received this revised salary for three months before the organization realized the mistake. What percentage of his correct new salary will get in the fourth month, if the excess paid to him in the previous three months is to be deducted from his fourth month?
Answer» Answer: ANS IS 40% Step-by-step explanation: Assume Deepak’s SALARY =10000 original hike (50%) amount = 5000 ; Revised salary =15000 Wrongly typed (80%) hike amount = 8000 Diff = 3000; For three months = 9000 Fourth Month Salary = 15000 - 9000=6000 15000 * x/100 = 6000 => x = 40%

34.

PLEASE ANY MY QUESTION URGENTDeepak was to get a 50% hike in his pay but the computer operator wrongly typed the figure as 80% and printed the new pay slip. He received this revised salary for three months before the organization realized the mistake. What percentage of his correct new salary will get in the fourth month, if the excess paid to him in the previous three months is to be deducted from his fourth month?

Answer»

Answer:

ANS IS 40%

Step-by-step explanation:

Assume Deepak’s SALARY =10000

original hike (50%) amount = 5000 ; Revised salary =15000

Wrongly typed (80%) hike amount = 8000

Diff = 3000; For three months = 9000

Fourth Month Salary = 15000 - 9000=6000

15000 * x/100 = 6000 => x = 40%

Discussion

35.	Hii Mates!! Can anyone please answer this question?? & whoever is answering my question, please do follow me.. I request.. Plz give the answer with full explanation..Jiska answer sahi aur accurate hoga, main uska hi answer BRAINLIEST mark karungi.. So, be careful!!
Answer» Answer: 31/4-13/4+4/3 the LCM of 4 ,4 and 3 is 12 31-13+4/12 14/12 7/6 KG

35.

Hii Mates!! Can anyone please answer this question?? & whoever is answering my question, please do follow me.. I request.. Plz give the answer with full explanation..Jiska answer sahi aur accurate hoga, main uska hi answer BRAINLIEST mark karungi.. So, be careful!!

Answer»

Answer:

31/4-13/4+4/3

the LCM of 4 ,4 and 3 is 12

31-13+4/12

14/12

7/6 KG

Discussion

36.	Factorisethe following using identities 1 + a + ab + a2b
Answer» $\: \: \: \: 1 + a + ab + {a}^{2} b \\ = > 1(1 + a) + ab(1 + a) \\ = > (1 + a)(1 + ab)$ *HOPE* *ITS* *HELPS* U.. *PLZ* *MARKS* AS *BRAINLIEST*..

36.

Factorisethe following using identities 1 + a + ab + a2b

Answer»

$\: \: \: \: 1 + a + ab + {a}^{2} b \\ = > 1(1 + a) + ab(1 + a) \\ = > (1 + a)(1 + ab)$

HOPE ITS HELPS U..

PLZ MARKS AS BRAINLIEST..

Discussion

37.	Plz solve this as fast as u can plzzz
Answer» If this SOLUTION REALLY helps you Than plz Mark me as BRAINLIST And follow me I will follow U back

37.

Plz solve this as fast as u can plzzz

Answer»

If this SOLUTION REALLY helps you

Than plz Mark me as BRAINLIST

And follow me

I will follow U back

Discussion

38.	.Prove that 5 √ 2 + 3 is an irrational number, given that √3 is irrational.
Answer» ANSWER: Step-by-step EXPLANATION: HAI in the MORNING and I will be in the morning

38.

.Prove that 5 √ 2 + 3 is an irrational number, given that √3 is irrational.

Answer»

ANSWER:

Step-by-step EXPLANATION: HAI in the MORNING and I will be in the morning

Discussion

39.	If 2 and -3 are the zeroes of the polynomial
Answer» Step-by-step EXPLANATION: a=0,b=-6 HEY it is so EASY

39.

If 2 and -3 are the zeroes of the polynomial

Answer»

Step-by-step EXPLANATION:

a=0,b=-6 HEY it is so EASY

Discussion

40.	5x + 13x – 5(show working)
Answer» ANSWER: 18x-5 I HOPE it is CORRECT answer d follow me

40.

5x + 13x – 5(show working)

Answer»

ANSWER:

18x-5

I HOPE it is CORRECT answer

d

follow me

Discussion

41.	Solve this problem if any one can
Answer» ANSWER: I ALSO ASKED the same QUESTION

41.

Solve this problem if any one can

Answer»

ANSWER:

I ALSO ASKED the same QUESTION

Discussion

42.	If a=2+√3,find the of a-1/a
Answer» Step-by-step EXPLANATION: HOPE you UNDERSTAND the SOLUTION

42.

If a=2+√3,find the of a-1/a

Answer»

Step-by-step EXPLANATION:

HOPE you UNDERSTAND the SOLUTION

Discussion

43.	2+7=123+12=184+20 =286+25? Ansplz
Answer» ANSWER: $\text{[math]}$ 33 is UR answer MATE .

43.

2+7=123+12=184+20 =286+25? Ansplz

Answer»

ANSWER:

$\text{[math]}$

33 is UR answer MATE .

Discussion

44.	Write the number in expended form A.34,56,094
Answer» ANS:- 3000000+400000+50000+6000+0+90+4

44.

Write the number in expended form A.34,56,094

Answer»

ANS:-

3000000+400000+50000+6000+0+90+4

Discussion

45.	In quadrilateral ABCD, diagonals AC and BDintersect at point E such thatAE : EC = BE : ED.Show that ABCD is a parallelogram.
Answer» ANSWER: see the PICTURES solution are GIVEN STEP by step

45.

In quadrilateral ABCD, diagonals AC and BDintersect at point E such thatAE : EC = BE : ED.Show that ABCD is a parallelogram.

Answer»

ANSWER: see the PICTURES solution are GIVEN STEP by step

Discussion

46.	It is Algebraic Operation chapter if do not know plz don't ans Rubish plz and ANS me fast with the process and statement
Answer» ANSWER: b) 4x + 18 c) 2x + 13 Step-by-step explanation: b) ${\underline{{\text{Given}}}}$ Ratul bought guava for ₹ x, apple for ₹(x+15) and cucumber for ₹ (2x + 3), ${\underline{{\text{To Find:}}}}$ How many MO does Retul SPEND on fruit? ${\underline{{\text{Solution:}}}}$ It's clearly mentioned that Ratul spend his money THREE times If we add his 3 spendings we will get our answer. So, (Spending 1 + Spending 2 + Spending 3) = ₹ (x + x + 15 + 2x + 3) = ₹ 4x + 18 Hence, Ratul spend ₹ 4x + 18 on fruit today. _______________________________________ c) ${\underline{{\text{Given}}}}$ last year Firoz present in school for x days. and Mohini present in school for (3x + 13) day ${\underline{{\text{To Find:}}}}$ How many money days was Mohini present more than Firoz ? ${\underline{{\text{Solution:}}}}$ If we subtract the the Present Days of Firoz from the present Days of Mohini in school last year. So, ( Present Days of Mohini - Present Days of Firoz) = (3x + 13 - x) day = (2x + 13) day Hence, Mohini present (2x + 13) days more in school from Firoz last year in school.

46.

It is Algebraic Operation chapter if do not know plz don't ans Rubish plz and ANS me fast with the process and statement

Answer»

ANSWER:

b) 4x + 18

c) 2x + 13

Step-by-step explanation:

b)

${\underline{{\text{Given}}}}$

Ratul bought guava for ₹ x, apple for

₹(x+15) and cucumber for ₹ (2x + 3),

${\underline{{\text{To Find:}}}}$

How many MO does Retul SPEND on fruit?

${\underline{{\text{Solution:}}}}$

It's clearly mentioned that Ratul spend his money THREE times If we add his 3 spendings we will get our answer.

So, (Spending 1 + Spending 2 + Spending 3)

= ₹ (x + x + 15 + 2x + 3)

= ₹ 4x + 18

Hence, Ratul spend ₹ 4x + 18 on fruit today.

_______________________________________

c)

${\underline{{\text{Given}}}}$

last year Firoz present in school for x days.

and Mohini present in school for (3x + 13) day

${\underline{{\text{To Find:}}}}$

How many money days was Mohini present more

than Firoz ?

${\underline{{\text{Solution:}}}}$

If we subtract the the Present Days of Firoz from the present Days of Mohini in school last year.

So,

( Present Days of Mohini - Present Days of Firoz)

= (3x + 13 - x) day

= (2x + 13) day

Hence, Mohini present (2x + 13) days more in school from Firoz last year in school.

Discussion

47.	What is the compound interest on a princopal at rs.25000after 3 year at the rate at 12%per annum
Answer» Answer: PRINCIPAL 25000 RATE 12% TIME 3 YEARS. P(1+R/100)³ 25000 (100+12/100)³ 25000× 112/100×112/100×112/100 35123200000/1000000 35123.2 THEN FIND C.P. THEN AMOUNT-PRINCIPAL 35123.2-25000 10123.2

47.

What is the compound interest on a princopal at rs.25000after 3 year at the rate at 12%per annum

Answer»

Answer:

PRINCIPAL 25000

RATE 12%

TIME 3 YEARS.

P(1+R/100)³

25000 (100+12/100)³

25000× 112/100×112/100×112/100

35123200000/1000000

35123.2

THEN FIND C.P.

THEN

AMOUNT-PRINCIPAL

35123.2-25000

10123.2

Discussion

48.	The number of points at which f(x)=\|x^3-7x\| is not differentiable is
Answer» Given: F (X) = \| x^3 - 7x \| To find: Find the number of POINTS at which f (x) = \| x^3 - 7x \| is not differentiable Solution: From given, we have a function, f (x) = \| x³ - 7x \| In order to find the points at which a given function is not differentiable, we NEED to equate the given function to zero. Therefore, we have, f(x) = 0 ⇒ \| x³ - 7x \| = 0 x³ - 7x = 0 x (x² - 7) = 0 x = 0 and x² - 7 = 0 x² = 7 x = √7 Therefore, there are 2 points, x = 0 and x = √7 where, the function f(x) =\|x^3-7x\| is not differentiable.

48.

The number of points at which f(x)=|x^3-7x| is not differentiable is

Answer»

Given:

F (X) = | x^3 - 7x |

To find:

Find the number of POINTS at which f (x) = | x^3 - 7x | is not differentiable

Solution:

From given, we have a function,

f (x) = | x³ - 7x |

In order to find the points at which a given function is not differentiable, we NEED to equate the given function to zero.

Therefore, we have,

f(x) = 0

⇒ | x³ - 7x | = 0

x³ - 7x = 0

x (x² - 7) = 0

x = 0 and

x² - 7 = 0

x² = 7

x = √7

Therefore, there are 2 points, x = 0 and x = √7 where, the function f(x) =|x^3-7x| is not differentiable.

Discussion

49.	-5x -11x = -32Find value of x
Answer» Answer: 2 is the VALUE of x Step-by-step EXPLANATION: -5x-11x=-32 -16x=-32 x=-32÷-16 As (-)÷(-)=+ x=32÷16 x=2 Hope It HELPS

49.

-5x -11x = -32Find value of x

Answer»

Answer:

2 is the VALUE of x

Step-by-step EXPLANATION:

-5x-11x=-32

-16x=-32

x=-32÷-16

As (-)÷(-)=+

x=32÷16

x=2

Hope It HELPS

Discussion

50.	If x multiply (1 ) =36 is x is positive or negative
Answer» ANSWER: positve Step-by-step EXPLANATION: +ve + +ve = +ve

50.

If x multiply (1 ) =36 is x is positive or negative

Answer»

ANSWER:

positve

Step-by-step EXPLANATION:

+ve + +ve = +ve

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