332354 + Interview Questions in Secondary School in Math

1.	Standard form of 40087
Answer» Forty Thousand EIGHTY Seven U will Mark As Brainliest ✌ Hope So.....

1.

Standard form of 40087

Answer»

Forty Thousand EIGHTY Seven

U will Mark As Brainliest ✌ Hope So.....

2.	यदि A=90* तो cos2A=???? -1-2-3-4
Answer» Cos 2A = 2cos^2a -1 A= 90 then cos 90 will be 0 So (2*0 )- 1 = -1 ANS

Discussion

3.	Write the sequence of sum of interior angles of regular polygon
Answer» Answer: IF *YOU* *HELPS* *THEN* Step-by-step explanation: The sum of all of the interior angles can be FOUND using the FORMULA S = (n - 2)*180. It is also possible to CALCULATE the measure of each angle if the POLYGON is regular by dividing the sum by the number of sides. MARK ME BRAINLIST, THANKS,VOTES, FOLLOW ME

3.

Write the sequence of sum of interior angles of regular polygon

Answer»

Answer:

IF YOU HELPS THEN

Step-by-step explanation:

The sum of all of the interior angles can be FOUND using the FORMULA S = (n - 2)*180. It is also possible to CALCULATE the measure of each angle if the POLYGON is regular by dividing the sum by the number of sides.

MARK ME BRAINLIST, THANKS,VOTES,

FOLLOW ME

Discussion

4.	Plz help me to solve Q.5 I will mark it brainliest
Answer» Step-by-step explanation: plz MARK it as BRAINLIEST answer hope it helps nd TELL it's correct or not PLZZZ.

4.

Plz help me to solve Q.5 I will mark it brainliest

Answer»

Step-by-step explanation:

plz MARK it as BRAINLIEST answer

hope it helps

nd TELL it's correct or not PLZZZ.

Discussion

5.	Solve it i need it do it fast
Answer» Step-by-step EXPLANATION: x²-4x+4-x²+4x+4= 8 p(X)=8 is the ANSWER

5.

Solve it i need it do it fast

Answer»

Step-by-step EXPLANATION:

x²-4x+4-x²+4x+4=

8

p(X)=8 is the ANSWER

Discussion

6.	A man walks "a" km in "b" hours. The time taken to walk 200m is :give step by step explanationa) ab/200 hoursb)200b/a hours c)a/200b hours d)b/5a hours
Answer» Answer: Step-by-step EXPLANATION: man travels a km(1000A m) in b hrs so, it will cover 1 m in b/1000a hrs *therefore, it covers 200 m in - b200/1000a hrs which is EQUAL to b/5a HOPE IT HELPS YOU.**

6.

A man walks "a" km in "b" hours. The time taken to walk 200m is :give step by step explanationa) ab/200 hoursb)200b/a hours c)a/200b hours d)b/5a hours

Answer»

Answer:

Step-by-step EXPLANATION: man travels a km(1000A m) in b hrs

so, it will cover 1 m in b/1000a hrs

therefore, it covers 200 m in - b*200/1000a hrs

which is EQUAL to b/5a

HOPE IT HELPS YOU.

Discussion

7.	The midpoint of 1, -2 and -3, 4 is
Answer» ANSWER: this is the answer of UR question follow me

7.

The midpoint of 1, -2 and -3, 4 is

Answer»

ANSWER:

this is the answer of UR question

follow me

Discussion

8.	The singular points of the equation x3 (x - 1)y" - 3xy' + 5y = 0 are --
Answer» ANSWER: DEAR MR ASK this QUESTION

8.

The singular points of the equation x3 (x - 1)y" - 3xy' + 5y = 0 are --

Answer»

ANSWER:

DEAR MR ASK this QUESTION

Discussion

9.	1. Solve graphically the following pairs of linear equations:(i) 2x - y = 43y-x=3 Also, find the coordinates of the points where these lines intersect the 2 axisShade the region (area) between the 2 lines and x axis.
Answer» Hello Take X as 1,2,3 or any THREE other number of your choise. And solve 1) x= 1 Then 21-y=4 -y=4-1 -y=3 y=-3 2) 22-y=4 -y=4-4 y=0 3) 2*3-y=4 -y=4-6 -y=-2 y=2 Mark as this. Do next also like this.

9.

1. Solve graphically the following pairs of linear equations:(i) 2x - y = 43y-x=3 Also, find the coordinates of the points where these lines intersect the 2 axisShade the region (area) between the 2 lines and x axis.

Answer»

Hello

Take X as 1,2,3 or any THREE other number of your choise.

And solve

1) x= 1

Then 2*1-y=4

-y=4-1

-y=3

y=-3

2) 2*2-y=4

-y=4-4

y=0

3) 2*3-y=4

-y=4-6

-y=-2

y=2

Mark as this.

Do next also like this.

Discussion

10.	Temperatureof a bodycan be measurein celsius unit as x°or in Fahrenheitunit as y°F. The relational between thetwo Systemof measurement of temperature is given by linear equationy =(9/5)x+32.a) from the linear equation. find the temperature of the body in Fahrenheit if the temperature of the body is 30°C.b) if the temperature is 95°F, then find the temperature in celcelsius
Answer» ANSWER: plzmark me as BRILLIANT

10.

Temperatureof a bodycan be measurein celsius unit as x°or in Fahrenheitunit as y°F. The relational between thetwo Systemof measurement of temperature is given by linear equationy =(9/5)x+32.a) from the linear equation. find the temperature of the body in Fahrenheit if the temperature of the body is 30°C.b) if the temperature is 95°F, then find the temperature in celcelsius

Answer»

ANSWER:

plzmark me as BRILLIANT

Discussion

11.	A cuboidal box of dimensions 1m x 2m x 1.5 m is to be painted except its bottom .Calculate how much area of box has to be painted
Answer» Answer: Step-by-step explanation: LENGTH of cabinet(l) = 2 m, Breadth of(b) = 1 m Height of cabinet (H)= 1.5 m Surface area of cabinet= area of top + LATERAL surface area = lb + 2(l+b)h Surface area of cabinet= lb + 2(l+b)h = 2×1+2(2+1)×1.5 = 2+2(3)× 1.5 = 2+ 6 ×1.5 = 2+ 9 = 11 m² Hence, the required surface area of cabinet is 11m² ========================================================= HOPE this will help you...

11.

A cuboidal box of dimensions 1m x 2m x 1.5 m is to be painted except its bottom .Calculate how much area of box has to be painted

Answer»

Answer:

Step-by-step explanation:

LENGTH of cabinet(l) = 2 m, Breadth of(b) = 1 m

Height of cabinet (H)= 1.5 m

Surface area of cabinet= area of top + LATERAL surface area

= lb + 2(l+b)h

Surface area of cabinet= lb + 2(l+b)h

= 2×1+2(2+1)×1.5

= 2+2(3)× 1.5

= 2+ 6 ×1.5

= 2+ 9

= 11 m²

Hence, the required surface area of cabinet is 11m²

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

HOPE this will help you...

Discussion

12.	Prove that 2/1+x^m-n+2/1+x^n-m=2
Answer» $LHS = \frac{2}{1+x^{m-n}} + \frac{2}{1+x^{n-m}}$ $= \frac{2}{1+\frac{x^{m}}{x^{n}} }+ \frac{2}{1+\frac{x^{n}}{x^{m}}}$ $\boxed { \pink { Since ,x^{m-n} = \frac{x^{m}}{x^{n}} }}$ $= \frac{2}{\frac{x^{n} + x^{m}}{x^{n}}} + \frac{2}{\frac{x^{m} + x^{n}}{x^{m}}}$ $= \frac{2x^{n}}{x^{m} + x^{n} } + \frac{2x^{m}}{x^{m} + x^{n} }\\= \frac{2( x^{m}+ x^{n})}{x^{m}+x^{n}}\\= 2 \\= RHS$ $Hence\: proved$ •••♪

12.

Prove that 2/1+x^m-n+2/1+x^n-m=2

Answer»

$LHS = \frac{2}{1+x^{m-n}} + \frac{2}{1+x^{n-m}}$

$= \frac{2}{1+\frac{x^{m}}{x^{n}} }+ \frac{2}{1+\frac{x^{n}}{x^{m}}}$

$\boxed { \pink { Since ,x^{m-n} = \frac{x^{m}}{x^{n}} }}$

$= \frac{2}{\frac{x^{n} + x^{m}}{x^{n}}} + \frac{2}{\frac{x^{m} + x^{n}}{x^{m}}}$

$= \frac{2x^{n}}{x^{m} + x^{n} } + \frac{2x^{m}}{x^{m} + x^{n} }\\= \frac{2( x^{m}+ x^{n})}{x^{m}+x^{n}}\\= 2 \\= RHS$

$Hence\: proved$

•••♪

Discussion

13.	Simplify 2 root7 upon root 5 +root 3
Answer» Answer: root35-root21 Step-by-step explanation: 2root7/root5+root3 (multiply and divide by root5-root3(RATIONALIZING FACTOR )) 2root7(root5-root3)/(root5+root3)(root5-root3) as we KNOW (a-b)(a+b)=a^2-b^2 2root7(root5-root3)/2 [5-3=2] ==root35-root21

13.

Simplify 2 root7 upon root 5 +root 3

Answer»

Answer:

root35-root21

Step-by-step explanation:

2root7/root5+root3

(multiply and divide by root5-root3(RATIONALIZING FACTOR ))

2root7(root5-root3)/(root5+root3)(root5-root3)

as we KNOW (a-b)(a+b)=a^2-b^2

2root7(root5-root3)/2 [5-3=2]

==root35-root21

Discussion

14.	An integers when multiplied by -7 gives 119 . find the integers
Answer» ANSWER: -17 is the INTEGER when MULTIPLIED by 119

14.

An integers when multiplied by -7 gives 119 . find the integers

Answer»

ANSWER:

-17 is the INTEGER when MULTIPLIED by 119

Discussion

15.	How much added to the sum of 77515 and 326812to get 500000
Answer» ANSWER: $500000 - 77515$ $422485$ and $500000 - 326812$ $173188$ *HOPE* IT *HELPS* U.......

15.

How much added to the sum of 77515 and 326812to get 500000

Answer»

ANSWER:

$500000 - 77515$

$422485$

and

$500000 - 326812$

$173188$

HOPE IT HELPS U.......

Discussion

16.	To Thenumeroatove becomesminator ida times of the deno-added to theto the number numeratoreand3:8Substroocted froom the denominatorthe freaction. But if I added to both itsnumerator& denominator the denominator beco-halfthe numerator hind the freaction.ofmes
Answer» ANSWER:rt Step-by-step EXPLANATION:

16.

To Thenumeroatove becomesminator ida times of the deno-added to theto the number numeratoreand3:8Substroocted froom the denominatorthe freaction. But if I added to both itsnumerator& denominator the denominator beco-halfthe numerator hind the freaction.ofmes

Answer»

ANSWER:rt

Step-by-step EXPLANATION:

Discussion

17.	1-----------------√2 - √3 + 1With explanation.
Answer» $\huge\mathfrak\red{YOUR ANSWER}$ *it's* *simple the answer is 1/-✓1 see* ✓2-✓3=-✓1 *and* 1/1 is 1 *only* so 1/-✓1 $\text{[math]}$ *●═══════════◄ HOPE IT HELPS YOU PLEASE MARK AS BRAINLIEST ►═══════════●*

17.

1-----------------√2 - √3 + 1With explanation.

Answer»

$\huge\mathfrak\red{YOUR ANSWER}$

it's simple the answer is 1/-✓1

see ✓2-✓3=-✓1

and 1/1 is 1 only so

1/-✓1

$\text{[math]}$ ●═══════════◄ HOPE IT HELPS YOU PLEASE MARK AS BRAINLIEST ►═══════════●

Discussion

18.	An integers when multiplied by -7 gives 119. find the integers
Answer» Step-by-step explanation: let the INTEGERS be x. A/Q x*(-7) =119 -7x=119 .:x=-17 hence required INTEGER -17. Bhai......... HOPE it is HELPFUL........ .

18.

An integers when multiplied by -7 gives 119. find the integers

Answer»

Step-by-step explanation:

let the INTEGERS be x.

A/Q

x*(-7) =119

-7x=119

.:x=-17

hence required INTEGER -17.

Bhai.........

HOPE it is HELPFUL........

.

Discussion

19.	Verify the following- Is X (3 + 2]=[-18 x 3] + [ -bx-12]
Answer» Answer: this problem at first glance LOOKS NORMAL but in fact it is not correct or rather, it is not complete what is B? what is the nature of X? all these questions arise when I look at the question

19.

Verify the following- Is X (3 + 2]=[-18 x 3] + [ -bx-12]

Answer»

Answer:

this problem at first glance LOOKS NORMAL but in fact it is not correct

or rather, it is not complete

what is B?

what is the nature of X?

all these questions arise when I look at the question

Discussion

20.	104 *96 using algebric indentities
Answer» $\huge\blue{\mathcal{\bf\purple{♡}{\pink {Answer}\purple{♡}}}}$ $104 \times 96$ $(100 + 4)(100 - 4)$ USING IDENTITY ${x}^{2} - {y}^{2} = (x + y)(x - y)$ ${100}^{2} - {4}^{2}$ $10000 - 16$ $984$

20.

104 *96 using algebric indentities

Answer»

$\huge\blue{\mathcal{\bf\purple{♡}{\pink {Answer}\purple{♡}}}}$

$104 \times 96$

$(100 + 4)(100 - 4)$

USING IDENTITY

${x}^{2} - {y}^{2} = (x + y)(x - y)$

${100}^{2} - {4}^{2}$

$10000 - 16$

$984$

Discussion

21.	(c) 16 = 4 + 3(t + 2)
Answer» Answer: 16 = 4 + 3T + 6 16 = 10 + 3t 16 -10 = 3t 6 = 3t t = 2 Step-by-step explanation: Please FOLLOW me and MARK as brain list answer .

21.

(c) 16 = 4 + 3(t + 2)

Answer»

Answer:

16 = 4 + 3T + 6

16 = 10 + 3t

16 -10 = 3t

6 = 3t

t = 2

Step-by-step explanation:

Please FOLLOW me and MARK as brain list answer .

Discussion

22.	Find the perimeter of a rectangular box with length as 6cm and breadth as 4cm
Answer» <P>Answer: Step-by-step explanation: GIVEN:- Length - 6 cm Breadth - 4 cm So , how to find the Perimeter? We know that:- PERIMETER = 2(Length + Breadth) Where length and breadth are already given. So placing the values, P = 2(6+4) P = 210 P = 20 centimetres. Things to Remember:- Formula of Perimeter of RECTANGLE is 2(L+B) Formula for AREA of Rectangle = LB Where L is Length And B is breadth Formula for Area of Square is a^2 Formula for Perimeter of Square is 4*a Where a is a side a is same because sides of Squares is same always.

22.

Find the perimeter of a rectangular box with length as 6cm and breadth as 4cm

Answer»

<P>Answer:

Step-by-step explanation:

GIVEN:-

Length - 6 cm

Breadth - 4 cm

So , how to find the Perimeter?

We know that:-

PERIMETER = 2(Length + Breadth)

Where length and breadth are already given.

So placing the values,

P = 2(6+4)

P = 2*10

P = 20 centimetres.

Things to Remember:-

Formula of Perimeter of RECTANGLE is 2(L+B)
Formula for AREA of Rectangle = L*B
Where L is Length
And B is breadth
Formula for Area of Square is a^2
Formula for Perimeter of Square is 4*a
Where a is a side
a is same because sides of Squares is same always.

Discussion

23.	Any 2 irrational number between 2/5 and 3/4
Answer» I HOPE it is helpful Plz MARK N BRAINLY

23.

Any 2 irrational number between 2/5 and 3/4

Answer»

I HOPE it is helpful

Plz MARK N BRAINLY

Discussion

24.	COMPUTE THE PROJECTION OF THE VECTOR V=(1,1,0) ONTO THE PLANE X+Y-Z=0.
Answer» Answer: here is your answer Step-by-step explanation: Calculate the matrix for the projection of R3 onto the plane x+y+z=0. If b=⎡⎣⎢xyz⎤⎦⎥ and A=⎡⎣⎢10−101−1⎤⎦⎥ I get stuck when TRYING to solve using ATAx^=ATb and projvb=Ax^ AT=[1001−1−1] therefore ATA=[2112] and ATb=[x−zy−z] So [2112]x^=[x−zy−z] Let's SAY x^=[ab], then 2a+b=x−z and a+2b=y−z Here is where I get CONFUSED, what is x^ so that I can PLUG it into projvb=Ax^ and get the projection vector? hope it helps you

24.

COMPUTE THE PROJECTION OF THE VECTOR V=(1,1,0) ONTO THE PLANE X+Y-Z=0.

Answer»

Answer:

here is your answer

Step-by-step explanation:

Calculate the matrix for the projection of R3 onto the plane x+y+z=0.

If b=⎡⎣⎢xyz⎤⎦⎥ and A=⎡⎣⎢10−101−1⎤⎦⎥ I get stuck when TRYING to solve using

ATAx^=ATb

and

projvb=Ax^

AT=[1001−1−1]

therefore ATA=[2112]

and ATb=[x−zy−z]

So

[2112]x^=[x−zy−z]

Let's SAY x^=[ab],

then 2a+b=x−z and a+2b=y−z

Here is where I get CONFUSED, what is x^ so that I can PLUG it into projvb=Ax^ and get the projection vector?

hope it helps you

Discussion

25.	Which quadrants do the given points lie? (7,5)
Answer» Answer: 1st QUADRANT Step-by-step explanation: 1st Quadrant=++ 2nd Quadrant=-+ 3rd Quadrant=-- 4TH Quadrant=+-

25.

Which quadrants do the given points lie? (7,5)

Answer»

Answer:

1st QUADRANT

Step-by-step explanation:

1st Quadrant=++

2nd Quadrant=-+

3rd Quadrant=--

4TH Quadrant=+-

Discussion

26.	The digitin ten's place of a 2-digit number is four times that in theunit's place. If the digit are reversedthe new number will be 54 less than theoriginal find the number and check theresult.
Answer» ANSWER: 10 ORIGINAL Step-by-step explanation: answer reversed CHECK the result

26.

The digitin ten's place of a 2-digit number is four times that in theunit's place. If the digit are reversedthe new number will be 54 less than theoriginal find the number and check theresult.

Answer»

ANSWER:

10 ORIGINAL

Step-by-step explanation:

answer reversed CHECK the result

Discussion

27.	Solve for rootsof the equation using quadratic formula.
Answer» Step-by-step EXPLANATION: by this METHOD i THINK the ANSWER can SOLVE

27.

Solve for rootsof the equation using quadratic formula.

Answer»

Step-by-step EXPLANATION:

by this METHOD i THINK the ANSWER can SOLVE

Discussion

28.	Please solve this urgent send me fast
Answer» ANSWER: you can REFER to the answer MENTIONED above

28.

Please solve this urgent send me fast

Answer»

ANSWER:

you can REFER to the answer MENTIONED above

Discussion

29.	If the two zeroes of the polynomial f(x) = x3 – 6x2 + mx + n are 2 5 and 2 5, + − then find third zero and values of m and n.Please answer fast!!!!!!!!
Answer» ANSWER: Since, it is given that -25 and+25 are the zeroes of the polynomial , therefore, f(x) = x3 – 6x2 + mx + n (x+25) and( x-25) are also the zeroes of the given polynomial. Now, consider the PRODUCT of zeroes as follows: (x+25) ( x-25) (x)^2- (25)^2 x^2-625 We now divide by f(x)= x3 – 6x2 + mx + n From the division, we observe that the quotient and the remainder by SOLVING you GOT your answer

29.

If the two zeroes of the polynomial f(x) = x3 – 6x2 + mx + n are 2 5 and 2 5, + − then find third zero and values of m and n.Please answer fast!!!!!!!!

Answer»

ANSWER:

Since, it is given that -25 and+25 are the zeroes of the polynomial , therefore, f(x) = x3 – 6x2 + mx + n (x+25) and( x-25) are also the zeroes of the given polynomial. Now, consider the PRODUCT of zeroes as follows:

(x+25) ( x-25)

(x)^2- (25)^2

x^2-625

We now divide by f(x)= x3 – 6x2 + mx + n

From the division, we observe that the quotient and the remainder

by SOLVING you GOT your answer

Discussion

30.	If z=2-3i,then z²-4z=
Answer» ANSWER: Step-by-step EXPLANATION: Z2-4Z=(2-3i)2-4(2-3i) 4+9i*2-12i-8+12i 4+9(-1)-8 4-9-8 -13

30.

If z=2-3i,then z²-4z=

Answer»

ANSWER:

Step-by-step EXPLANATION:

Z*2-4Z=(2-3i)*2-4(2-3i)

4+9i*2-12i-8+12i

4+9(-1)-8

4-9-8

-13

Discussion

31.	Order each set of integers from smalledto greatest1, 12, 17,0,21,27
Answer» Answer: 0,1,12,17,21,27.... HOPE it will HELP you.. FOLLOW me...

31.

Order each set of integers from smalledto greatest1, 12, 17,0,21,27

Answer»

Answer:

0,1,12,17,21,27....

HOPE it will HELP you..

FOLLOW me...

Discussion

32.	In triangle LMN, angle X= angle y ,and angle a= angle b. Find themeasure of
Answer» ANSWER: L + m =p Step-by-step EXPLANATION: by exterior angle PROPERTY of a TRIANGLE

32.

In triangle LMN, angle X= angle y ,and angle a= angle b. Find themeasure of

Answer»

ANSWER:

L + m =p

Step-by-step EXPLANATION:

by exterior angle PROPERTY of a TRIANGLE

Discussion

33.	Solve the quiz. Help!
Answer» Answer: 1. A=2 and B=4 2. 10 (11)/2 110/2 55 There fore value is 55 as (1/n)^-1=n Plz MARK it as BRAINLIST plz Step-by-step explanation:

33.

Solve the quiz. Help!

Answer»

Answer:

1. A=2 and B=4

2. 10 (11)/2

110/2

55

There fore value is 55 as (1/n)^-1=n

Plz MARK it as BRAINLIST plz

Step-by-step explanation:

Discussion

34.	Add the rational number: 13/4 and 9/7
Answer» TAKE LCM and ADD 13/4 + 9/7= 91+36/28 = 127/28 your ANSWER

34.

Add the rational number: 13/4 and 9/7

Answer»

TAKE LCM and ADD

13/4 + 9/7= 91+36/28 = 127/28 your ANSWER

Discussion

35.	Simplify the equation 7 to the power 3/7 to the power 8
Answer» ANSWER: this is the ANS WER FOLLOW me

35.

Simplify the equation 7 to the power 3/7 to the power 8

Answer»

ANSWER:

this is the ANS WER FOLLOW me

Discussion

36.	What should be subtracted from 823824 to get 501786
Answer» ANSWER: this is the answer FOLLOW me

36.

What should be subtracted from 823824 to get 501786

Answer»

ANSWER:

this is the answer

FOLLOW me

Discussion

37.	Evaluate (-32) x 75+ (-32) × 29
Answer» Step-by-step EXPLANATION: a×b+a×c=d (-32)×75+(-32)×29 =(-2,400)+(-928)=(-)(-)=(+) =3,328

37.

Evaluate (-32) x 75+ (-32) × 29

Answer»

Step-by-step EXPLANATION:

a×b+a×c=d

(-32)×75+(-32)×29

=(-2,400)+(-928)=(-)(-)=(+)

=3,328

Discussion

38.	Rationalize the denominator of:1----------------√3 - √2 + 1with explanation.
Answer» LOOK , 1/ $\sqrt{3\\}$ - $\sqrt{2}$ +1

38.

Rationalize the denominator of:1----------------√3 - √2 + 1with explanation.

Answer»

LOOK , 1/ $\sqrt{3\\}$ - $\sqrt{2}$ +1

Discussion

39.	7^4k congruent (mod 100)
Answer» HEY MATE ☺️ HERE IS YOUR ANSWER ☺️ ☺️ 88 Step-by-step explanation: 7^4k= 8 100 mods 77^1%thes 100by89% *HOPE THI*S WILL HELP YOU ☺️ ☺️ #UJGoel

39.

7^4k congruent (mod 100)

Answer»

HEY MATE ☺️

HERE IS YOUR ANSWER ☺️ ☺️

88

Step-by-step explanation:

7^4k= 8 100 mods

77^1%thes 100by89%

HOPE THIS WILL HELP YOU ☺️ ☺️

#UJGoel

Discussion

40.	1/3-2√3 rationing factor
Answer» Answer: I don't know about this sum but you can solve this way Since (3+10−5)(3+10+5) =(3+10)2−(5)2 =3+10+2310−5=8+230 and , (8+230)(8−230)=82−(230)2 =64−4×30=−56 Therefore, (3+10−5)(3+10+5)(8−230) =−56 which is a rational number Hence, (3+10+5)(8−230) is a rationalizing factor of (3+10−5) question of the answer Find the rationalising factor of : (3+10−5) A . (3+10+5)(8−230) B . (3+10+5) C . (3+10+5)(8+230) D . NONE of the above hope you like it please mark the brainliest

40.

1/3-2√3 rationing factor

Answer»

Answer:

I don't know about this sum but you can solve this way

Since (3+10−5)(3+10+5)

=(3+10)2−(5)2

=3+10+2310−5=8+230

and , (8+230)(8−230)=82−(230)2

=64−4×30=−56

Therefore,

(3+10−5)(3+10+5)(8−230)

=−56 which is a rational number

Hence, (3+10+5)(8−230) is a rationalizing factor of (3+10−5)

question of the answer

Find the rationalising factor of : (3+10−5)

A .

(3+10+5)(8−230)

B .

(3+10+5)

C .

(3+10+5)(8+230)

D .

NONE of the above

hope you like it please mark the brainliest

Discussion

41.	Tell us:-1. 1 kilogram?2. 1 gram?3. 1 litre?4. 1 mililitre5. 1 kilometre?6. 1 metre?Who can tell right answer then I can mark on brainliest answer.Thank you.
Answer» 1 KILOGRAM = 1000 grams 1 gram = 100 miligram 1 litre = 1000ml 1 millilitre = 100 microlitre 1 kilometre = 1000 metres 1 METRE = 100cm this is the correct answer mark as brainliest plz I REQUEST you

41.

Tell us:-1. 1 kilogram?2. 1 gram?3. 1 litre?4. 1 mililitre5. 1 kilometre?6. 1 metre?Who can tell right answer then I can mark on brainliest answer.Thank you.

Answer»

1 KILOGRAM = 1000 grams

1 gram = 100 miligram

1 litre = 1000ml

1 millilitre = 100 microlitre

1 kilometre = 1000 metres

1 METRE = 100cm

this is the correct answer

mark as brainliest

plz

I REQUEST you

Discussion

42.	Write the following in a statement :-3/5m-7=5
Answer» Answer: three DIVIDED by five metre MINUS seven is EQUAL to five

42.

Write the following in a statement :-3/5m-7=5

Answer»

Answer:

three DIVIDED by five metre MINUS seven is EQUAL to five

Discussion

43.	Find the zeros , sum of zeros & product if zeros of 4√3x2+5x-2√3
Answer» ANSWER: GIVEN: P(x) = 4√3x²+5x-2√3 TO FIND: Zeros , Sum of zeros , Product of the zeros. SOLUTION: => 4√3x²+5x-2√3 = 0 => 4√3x² +8x -3x -2√3 = 0 => (4√3x²+8x)+(-3x-2√3) = 0 => 4x(√3x+2) -√3(√3x+2) = 0 => (√3x+2)(4x-√3) = 0 Either (√3x+2) = 0 => √3x = -2 => x = -2/√3 After rationalising : => x = -2√3/3 Either (4x-√3) = 0 => 4x = √3 => x = √3/4 Sum of zeros : $= \dfrac{ - 2 \sqrt{3} }{3} + \dfrac{ \sqrt{3} }{4} \\ \\ = \dfrac{ - 8 \sqrt{3} + 3 \sqrt{3} }{12} \\ \\ = \dfrac{ - 5 \sqrt{3} }{12}$ Product of zeros: $= \dfrac{ - 2 \sqrt{3} }{3} \times \dfrac{ \sqrt{3} }{4} \\ \\ = \dfrac{ - 1}{2}$ NOTE: Some important formulas: => Sum of zeros (α+β) = -(Coefficient of x)/Coefficient of x² => Product of zeros (αβ) = CONSTANT TERM/ Coefficient of x²

43.

Find the zeros , sum of zeros & product if zeros of 4√3x2+5x-2√3

Answer»

ANSWER:

GIVEN:

P(x) = 4√3x²+5x-2√3

TO FIND:

Zeros , Sum of zeros , Product of the zeros.

SOLUTION:

=> 4√3x²+5x-2√3 = 0

=> 4√3x² +8x -3x -2√3 = 0

=> (4√3x²+8x)+(-3x-2√3) = 0

=> 4x(√3x+2) -√3(√3x+2) = 0

=> (√3x+2)(4x-√3) = 0

Either (√3x+2) = 0

=> √3x = -2

=> x = -2/√3

After rationalising :

=> x = -2√3/3

Either (4x-√3) = 0

=> 4x = √3

=> x = √3/4

Sum of zeros :

$= \dfrac{ - 2 \sqrt{3} }{3} + \dfrac{ \sqrt{3} }{4} \\ \\ = \dfrac{ - 8 \sqrt{3} + 3 \sqrt{3} }{12} \\ \\ = \dfrac{ - 5 \sqrt{3} }{12}$

Product of zeros:

$= \dfrac{ - 2 \sqrt{3} }{3} \times \dfrac{ \sqrt{3} }{4} \\ \\ = \dfrac{ - 1}{2}$

NOTE:

Some important formulas:

=> Sum of zeros (α+β) = -(Coefficient of x)/Coefficient of x²

=> Product of zeros (αβ) = CONSTANT TERM/ Coefficient of x²

Discussion

44.	If the product of two fractions is equal to the difference of the two fractions, and the first fraction is 1/4, find the second fraction?
Answer» Answer: Answer is 1/5 Step-by-step explanation: because 1/4 15=1/4-1/5 I HOPE* *you* *understand* *Please* *MARK* as *BRAINLIEST*

44.

If the product of two fractions is equal to the difference of the two fractions, and the first fraction is 1/4, find the second fraction?

Answer»

Answer:

Answer is 1/5

Step-by-step explanation:

because 1/4 *15=1/4-1/5

I HOPE you understand

Please MARK as BRAINLIEST

Discussion

45.	Find the sum of first 25 terms of an AP whose n th term is given by an = 2-3n
Answer» ANSWER: Step-by-step explanation: aₙ = 2-3n a1 = -1 a2 = -4 a3 = -7 So we come to know that a=(-1) and d=-3 s25= n/2(2A+(n-1)d) =25/2 (-2-3n+3) =25/2 (1-75) =25/2 x -74 =25 x -37 =-925 Pls mark as brainliest

45.

Find the sum of first 25 terms of an AP whose n th term is given by an = 2-3n

Answer»

ANSWER:

Step-by-step explanation:

aₙ = 2-3n

a1 = -1

a2 = -4

a3 = -7

So we come to know that a=(-1) and d=-3

s25= n/2(2A+(n-1)d)

=25/2 (-2-3n+3)

=25/2 (1-75)

=25/2 x -74

=25 x -37

=-925

Pls mark as brainliest

Discussion

46.	Rationalize the denominator of:1 ------------------ √3 - √2 + 1with explanation.
Answer» 2 is the CORRECT ANSWER

Discussion

47.	() 40a44030.योग का34012540 रु. A, B और C में इस प्रकार बाँटे गए कि A को B एवं C के हिस्सों केतथा B को A एवं C के हिस्सों के योग का = मिले, तो C का हिस्साकितना है?(a) 6450 (b) 6388 (c) 6498(d) 648997
Answer» ANSWER: kuch SAMAJ MAI NAHI aaraha HAI

47.

() 40a44030.योग का34012540 रु. A, B और C में इस प्रकार बाँटे गए कि A को B एवं C के हिस्सों केतथा B को A एवं C के हिस्सों के योग का = मिले, तो C का हिस्साकितना है?(a) 6450 (b) 6388 (c) 6498(d) 648997

Answer»

ANSWER:

kuch SAMAJ MAI NAHI aaraha HAI

Discussion

48.	Every _________can be expressed as product of prime numbers. *
Answer» Step-by-step explanation: Every composite number can be expressed as a product of PRIMES. ... All the composite numbers can be expressed as all of its PRIME FACTORS. The number 1 is NEITHER composite nor prime. Composite number can be written as a product of prime numbers, for this we have to follow prime factorization method.

48.

Every _________can be expressed as product of prime numbers. *

Answer»

Step-by-step explanation:

Every composite number can be expressed as a product of PRIMES. ... All the composite numbers can be expressed as all of its PRIME FACTORS. The number 1 is NEITHER composite nor prime. Composite number can be written as a product of prime numbers, for this we have to follow prime factorization method.

Discussion

49.	Fill in the blanks:(d) 5 hundred million= ......crore
Answer» Step-by-step explanation: 500 MILLION is EQUAL to 50 CRORES.

49.

Fill in the blanks:(d) 5 hundred million= ......crore

Answer»

Step-by-step explanation:

500 MILLION is EQUAL to 50 CRORES.

Discussion

50.	The sum of digit of a two is 9. If the new number formed by reversing digit
Answer» ANSWER: UR QUESTION is not COMPLETE FRIEND

50.

The sum of digit of a two is 9. If the new number formed by reversing digit

Answer»

ANSWER:

UR QUESTION is not COMPLETE FRIEND

Discussion

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GIVEN:

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