332354 + Interview Questions in Secondary School in Math

1.	The equation of a line that is tangent to a circle whose equation is x^2+y^2 = 36 and passing through the point (12, 4) areY = – 0.1742 X + 6.09 and Y = 2 X – 8.7569 it is true or false
Answer» Step-by-step explanation: EQUATION of CIRCLE is x 2 +y 2 =9 equation of tangent parallel to 2x+y−3=0 is 2x+y+λ=0 its distance from centre = radius of the circle. radius of circle =3 units. ∴ 4+1 ∣2×0+0+λ∣ =3 ⇒λ=3 5 ∴ Equation of tangent is 2x+y+3 5 =0

1.

The equation of a line that is tangent to a circle whose equation is x^2+y^2 = 36 and passing through the point (12, 4) areY = – 0.1742 X + 6.09 and Y = 2 X – 8.7569 it is true or false

Answer»

Step-by-step explanation:

EQUATION of CIRCLE is x

2

+y

2

=9

equation of tangent parallel to 2x+y−3=0 is 2x+y+λ=0

its distance from centre = radius of the circle.

radius of circle =3 units.

∴

4+1

∣2×0+0+λ∣

=3

⇒λ=3

5

∴ Equation of tangent is 2x+y+3

5

=0

Discussion

2.	. In the adjoining figure, the diagonals AC and BD of parallelogram intersect at O.Prove that OE = OF.
Answer» ANSWER: ghfhhfjhdggydgdyhdghdhycyhfbtxjfbb

2.

. In the adjoining figure, the diagonals AC and BD of parallelogram intersect at O.Prove that OE = OF.

Answer»

ANSWER:

ghfhhfjhdggydgdyhdghdhycyhfbtxjfbb

Discussion

3.	71/210 has terminating decimal expansion or not
Answer» Answer: No it doesn't have a TERMINATING decimal expansion Because the DENOMINATOR cannot be WRITTEN in terms of 2power n and 5 power m Step-by-step explanation: I HOPE this answer may HELP you

3.

71/210 has terminating decimal expansion or not

Answer»

Answer:

No it doesn't have a TERMINATING decimal expansion

Because the DENOMINATOR cannot be WRITTEN in terms of 2power n and 5 power m

Step-by-step explanation:

I HOPE this answer may HELP you

Discussion

4.	Which line is parallel to y=x-2? (a) y=2x+1 (b) 2y=2x-6 (c) 2y=x+7 (d) y=3x+1.I am in Urgent
Answer» Answer: Given line has SLOPE= 1 Option (B) has slope 1 hence ( B ) is PARALLEL

4.

Which line is parallel to y=x-2? (a) y=2x+1 (b) 2y=2x-6 (c) 2y=x+7 (d) y=3x+1.I am in Urgent

Answer»

Answer:

Given line has SLOPE= 1

Option (B) has slope 1 hence ( B ) is PARALLEL

Discussion

5.	The line segments joining the points (11,-7) and (2,11) is trisected at points P and Q such that P is nearer to A. If point P also lies on the line 8x-5y+k=0, find the value of k and coordinates of Q.
Answer» <P>ANSWER: A/Q A(11,-7) & B(2,11) . ALSO P divide AB internally in 1:2 so coordinate of P is.. $( \frac{1 \times 2 + 2 \times 11}{1 + 2} \: \frac{1 \times 11 - 2 \times 7}{1 + 2} ) = (8 \: \: . \: \: - 1)$ P lies on 8x - 5y + k = 0, then 8×8+5×1+k = 0. HENCE k = -69 Ans. now Q divide AB in 2:1 then, find Q(try your self)

5.

The line segments joining the points (11,-7) and (2,11) is trisected at points P and Q such that P is nearer to A. If point P also lies on the line 8x-5y+k=0, find the value of k and coordinates of Q.

Answer»

<P>ANSWER:

A/Q A(11,-7) & B(2,11) . ALSO P divide AB internally in 1:2 so coordinate of P is..

$( \frac{1 \times 2 + 2 \times 11}{1 + 2} \: \frac{1 \times 11 - 2 \times 7}{1 + 2} ) = (8 \: \: . \: \: - 1)$

P lies on 8x - 5y + k = 0, then 8×8+5×1+k = 0. HENCE k = -69 Ans.

now Q divide AB in 2:1 then,

find Q(try your self)

Discussion

6.	Multiply 254268 by 45
Answer» Step-by-step explanation: 254268 × 45 = 11442060 HOPE IT HELPED YOU FOLLOW ME AND MAKE THIS BRAINLLIEST ANSWER

6.

Multiply 254268 by 45

Answer»

Step-by-step explanation:

254268 × 45 = 11442060

HOPE IT HELPED YOU FOLLOW ME AND MAKE THIS BRAINLLIEST ANSWER

Discussion

7.	यदि (3/5)^3(3/5)^-6=(3/5)2x-1 हो,तो x=?
Answer» ANSWER: $( \frac{3}{5} ) {}^{3} \times ( \frac{3}{5} ) {}^{ - 6} = ( \frac{3}{5} ) {}^{2x - 1}$ $( \frac{3}{5} ) {}^{ - 3} = ( \frac{3}{5} ) {}^{2x - 1}$ $2x - 1 = - 3$ $2x = - 2$ $x = - 1 \: \: ans.$ MARK BRAINLIEST if this is HELPFUL to you. THANKS

7.

यदि (3/5)^3(3/5)^-6=(3/5)2x-1 हो,तो x=?

Answer»

ANSWER:

$( \frac{3}{5} ) {}^{3} \times ( \frac{3}{5} ) {}^{ - 6} = ( \frac{3}{5} ) {}^{2x - 1}$

$( \frac{3}{5} ) {}^{ - 3} = ( \frac{3}{5} ) {}^{2x - 1}$

$2x - 1 = - 3$

$2x = - 2$

$x = - 1 \: \: ans.$

MARK BRAINLIEST if this is HELPFUL to you. THANKS

Discussion

8.	Simplify the given following√-18×√-2
Answer» ANSWER: this EXPRESSION is INCORRECT

8.

Simplify the given following√-18×√-2

Answer»

ANSWER:

this EXPRESSION is INCORRECT

Discussion

9.	The equation of a line that is tangent to a circle whose equation is x^2+y^2 = 36 and passing through the point (12, 4) areY = – 0.1742 X + 6.09 and Y = 2 X – 8.7569
Answer» Answer: Equation of CIRCLE is x 2 +y 2 =9 equation of TANGENT parallel to 2x+y−3=0 is 2x+y+λ=0 its DISTANCE from centre = radius of the circle. radius of circle =3 units. ∴ 4+1 ∣2×0+0+λ∣ =3 ⇒λ=3 5 ∴ Equation of tangent is 2x+y+3 5 =0 PLZZZZZZZZZZZZZ FOLLOW ME I WILL SEND THE ANSWERS TO YOU

9.

The equation of a line that is tangent to a circle whose equation is x^2+y^2 = 36 and passing through the point (12, 4) areY = – 0.1742 X + 6.09 and Y = 2 X – 8.7569

Answer»

Answer:

Equation of CIRCLE is x

2

+y

2

=9

equation of TANGENT parallel to 2x+y−3=0 is 2x+y+λ=0

its DISTANCE from centre = radius of the circle.

radius of circle =3 units.

∴

4+1

∣2×0+0+λ∣

=3

⇒λ=3

5

∴ Equation of tangent is 2x+y+3

5

=0

PLZZZZZZZZZZZZZ FOLLOW ME I WILL SEND THE ANSWERS TO YOU

Discussion

10.	22) A 4-digit number that lies between 9990 and the largest 4-digit number has thesum of its digits as 33. Find the number.Solution: ...
Answer» Answer: 9995,9994,9993,9992,9991 Step-by-step EXPLANATION:

10.

22) A 4-digit number that lies between 9990 and the largest 4-digit number has thesum of its digits as 33. Find the number.Solution: ...

Answer»

Answer:

9995,9994,9993,9992,9991

Step-by-step EXPLANATION:

Discussion

11.	2x+15 find the value of x
Answer» GIVEN : 2x = 15 ( CORRECT Question ) To Find : VALUE of x Solution: 2x = 15 LHS = 2x RHS = 15 Dividing both sides by 2 => 2x/2 = 15/2 Cancelling 2 from numerator and denominator in LHS => x = 15/2 => x = 7.5 Value of x = 15/2 or 7.5 Learn More : Find the value of X . .solve brainly.in/question/9083355 Find the value of x for which 5x-4 brainly.in/question/30529686 find the value of x by factorization, x2-8x+1280=0 brainly.in/question/7343350

11.

2x+15 find the value of x

Answer»

GIVEN : 2x = 15 ( CORRECT Question )

To Find : VALUE of x

Solution:

2x = 15

LHS = 2x

RHS = 15

Dividing both sides by 2

=> 2x/2 = 15/2

Cancelling 2 from numerator and denominator in LHS

=> x = 15/2

=> x = 7.5

Value of x = 15/2 or 7.5

Learn More :

Find the value of X . .solve

brainly.in/question/9083355

Find the value of x for which 5x-4

brainly.in/question/30529686

find the value of x by factorization, x2-8x+1280=0

brainly.in/question/7343350

Discussion

12.	Subtract 2x^3 - 4x^2 + 3x + 5 from 4x^3 + x^2 + x + 6
Answer» Step-by-step EXPLANATION: ↪️2x³+5x²-2x+1 is ur required answer ⚠️⚠️➡️hope it helps you please mark me as BRAINLIEST please please refer to the above ATTACHMENT DEAR FRIEND ⬆️⬆️⬆️⬆️⬆️

12.

Subtract 2x^3 - 4x^2 + 3x + 5 from 4x^3 + x^2 + x + 6

Answer»

Step-by-step EXPLANATION:

↪️2x³+5x²-2x+1 is ur required answer

⚠️⚠️➡️hope it helps you please mark me as BRAINLIEST please please refer to the above ATTACHMENT DEAR FRIEND ⬆️⬆️⬆️⬆️⬆️

Discussion

13.	The value of 2 power-4 is
Answer» Answer: answer is 1/16 Step-by-step explanation: 2power-4=1/2 power 4 due to the laws of exponents since we know 2 power 4 is 16 2 power-4=1/16 please mark my answer the BRAINLIESTIF you find my answer USEFUL

13.

The value of 2 power-4 is

Answer»

Answer:

answer is 1/16

Step-by-step explanation:

2power-4=1/2 power 4 due to the laws of exponents

since we know 2 power 4 is 16

2 power-4=1/16

please mark my answer the BRAINLIESTIF you find my answer USEFUL

Discussion

14.	Answer quick 1st person will be marked as the brainliest
Answer» Answer: 6 and 8 , 6 and 7, 8 and 2

14.

Answer quick 1st person will be marked as the brainliest

Answer»

Answer:

6 and 8 , 6 and 7, 8 and 2

Discussion

15.	Which three of the numbers give a total of 4387?
Answer» $ITZ TUA TUA$

15.

Which three of the numbers give a total of 4387?

Answer»

$ITZ TUA TUA$

Discussion

16.	cuboid is 24 cm long 12 CM broad 6 cm height find the whole surface area of a cube is volume equal to that of a cube
Answer» SOLUTION :- → Length of CUBOID = 24cm. → Breadth of cuboid = 12cm. → Height of cuboid = 6cm. So, → Volume of cuboid = Length * Breadth * Height → Volume of cuboid = 24 * 12 * 6 → Volume of cuboid = 1728cm³. Now, given that, → Volume of cuboid = Volume of cube So, → volume of cube = 1728cm³ → (side of cube)³ = 1728 → (side of cube)³ = (12)³ → side of cube = 12 cm. Therefore, → Total surface Area of cube = 6(side of cube)² → Total surface Area of cube = 6(12)² → Total surface Area of cube = 6 * 144 → Total surface Area of cube = 864cm² (ANS.)

16.

cuboid is 24 cm long 12 CM broad 6 cm height find the whole surface area of a cube is volume equal to that of a cube

Answer»

SOLUTION :-

→ Length of CUBOID = 24cm.

→ Breadth of cuboid = 12cm.

→ Height of cuboid = 6cm.

So,

→ Volume of cuboid = Length * Breadth * Height

→ Volume of cuboid = 24 * 12 * 6

→ Volume of cuboid = 1728cm³.

Now, given that,

→ Volume of cuboid = Volume of cube

So,

→ volume of cube = 1728cm³

→ (side of cube)³ = 1728

→ (side of cube)³ = (12)³

→ side of cube = 12 cm.

Therefore,

→ Total surface Area of cube = 6*(side of cube)²

→ Total surface Area of cube = 6*(12)²

→ Total surface Area of cube = 6 * 144

→ Total surface Area of cube = 864cm² (ANS.)

Discussion

17.	Find the point on x-axis which is equidistant from the points (-2,5) and (2,9). please answer with distance formula
Answer» ANSWER: HENCE, point on the x-axis which is EQUIDISTANT from (2,−5) and (−2,9) is (−7,0). Hope it HELPS you!!!

17.

Find the point on x-axis which is equidistant from the points (-2,5) and (2,9). please answer with distance formula

Answer»

ANSWER:

HENCE, point on the x-axis which is EQUIDISTANT from (2,−5) and (−2,9) is (−7,0).

Hope it HELPS you!!!

Discussion

18.	Express sinA,cosA in terms of tanA
Answer» SINA = tanA/+-√tan²A + 1 cosA = 1/√1 + tan²A hope this is HELPFUL

18.

Express sinA,cosA in terms of tanA

Answer»

SINA = tanA/+-√tan²A + 1

cosA = 1/√1 + tan²A

hope this is HELPFUL

Discussion

19.	12. What is the smallest number by whichmay be divided so that the quotientiis a perfect cube"Seperfect cube?
Answer» Answer: 6 MAY DIVIDE so that the

19.

12. What is the smallest number by whichmay be divided so that the quotientiis a perfect cube"Seperfect cube?

Answer»

Answer:

6 MAY DIVIDE so that the

Discussion

20.	7x -3 /2 = -2/3solve the following equation
Answer» Answer: 5/42 Step-by-step explanation: 7x. = -2/3+3/2 7x. = -4+9/6 7x. = 5/6 x. = 5/42

20.

7x -3 /2 = -2/3solve the following equation

Answer»

Answer:

5/42

Step-by-step explanation:

7x. = -2/3+3/2

7x. = -4+9/6

7x. = 5/6

x. = 5/42

Discussion

21.	Solve please this question who is math lover
Answer» ANSWER: SORRY I can't UNDERSTAND

21.

Solve please this question who is math lover

Answer»

ANSWER:

SORRY I can't UNDERSTAND

Discussion

22.	Differentiate: e^5ln(tan5x)answer fast if can
Answer» Answer: Step-by-step explanation: Using, e^ln(a)=a And, ln(a^x)=x⋅ln(a) we get, e^5ln(TAN(5x)) e^ln(tan(5x))5 =tan5(5x) from there, we can use the chain RULE (U5)'⋅(tan(5x))' where (tan(5x))=sec^2(5x)⋅5 which gives, 5u4sec2(5x)⋅5 In total that becomes, 25tan^4(5x)sec^2(5x)

22.

Differentiate: e^5ln(tan5x)answer fast if can

Answer»

Answer:

Step-by-step explanation:

Using,

e^ln(a)=a

And,

ln(a^x)=x⋅ln(a)

we get,

e^5ln(TAN(5x))

e^ln(tan(5x))5

=tan5(5x)

from there, we can use the chain RULE

(U5)'⋅(tan(5x))'

where

(tan(5x))=sec^2(5x)⋅5

which gives,

5u4sec2(5x)⋅5

In total that becomes,

25tan^4(5x)sec^2(5x)

Discussion

23.	Lcm of 3584solve it pls pls pls pls pal pal pls pls pls pal psl
Answer» 2×2×2×2×2×2×2×2×2×7×1

Discussion

24.	Answer these questions:
Answer» Step-by-step EXPLANATION: hope this HELPS you LIXIN marks=x devi=2x devi has 15 marks more then lixin 2x-x=15 x=15

24.

Answer these questions:

Answer»

Step-by-step EXPLANATION:

hope this HELPS you

LIXIN marks=x

devi=2x

devi has 15 marks more then lixin

2x-x=15

x=15

Discussion

25.	The sides of the triangle are in ratio2:3:4 and its perimeter is 36 cm then its area will be
Answer» Answer:37.947 Step-by-step EXPLANATION:

25.

The sides of the triangle are in ratio2:3:4 and its perimeter is 36 cm then its area will be

Answer»

Answer:37.947

Step-by-step EXPLANATION:

Discussion

26.	Two cars started from the same point. First car went towards the east and covered 64 km in onehour. The second car went towards the west and covered 58 km in one hour. Find the distance between the two cars after one hour.
Answer» PLEASE GIVE me the ANSWER this QUESTION

Discussion

27.	Find the remainder for the following without actual division(x^3-5x^2+4x-3)÷(x-2) Plzz answer correctly I will follow u.....
Answer» Step-by-step EXPLANATION: ANSWER is 148 MARK as BRAINLEST

27.

Find the remainder for the following without actual division(x^3-5x^2+4x-3)÷(x-2) Plzz answer correctly I will follow u.....

Answer»

Step-by-step EXPLANATION:

ANSWER is 148

MARK as BRAINLEST

Discussion

28.	(1/3c^4)÷(1/5c^8) WHAT IS THE ANSWER??
Answer» Answer: 2.06331691 × 10-34 S4 / m4 Step-by-step EXPLANATION:

28.

(1/3c^4)÷(1/5c^8) WHAT IS THE ANSWER??

Answer»

Answer:

2.06331691 × 10-34 S4 / m4

Step-by-step EXPLANATION:

Discussion

29.	C., 214455021445504455 X 100 = 214455004455 X 1000 = 2144550002 Multiplication oand 3-digit numExample 8Multiply 254268 by 45Solution
Answer» 254268×45=11442060 please MARK me as a BRAINLIST

29.

C., 214455021445504455 X 100 = 214455004455 X 1000 = 2144550002 Multiplication oand 3-digit numExample 8Multiply 254268 by 45Solution

Answer»

254268×45=11442060

please MARK me as a BRAINLIST

Discussion

30.	Determine the value of the following 2^2+log2^3
Answer» Answer:4.903 Step-by-step EXPLANATION:

30.

Determine the value of the following 2^2+log2^3

Answer»

Answer:4.903

Step-by-step EXPLANATION:

Discussion

31.	. 2p=15 2p+5q=30using substitute method to solve it
Answer» 2p = 15 p = 15/2 2p + 5q = 30 2×15/2 + 5q = 30 15 + 5q = 30 5q = 30 - 15 5q = 15 q = 3 Hope it HELPS!! Thank you ✌️

31.

. 2p=15 2p+5q=30using substitute method to solve it

Answer»

2p = 15

p = 15/2

2p + 5q = 30

2×15/2 + 5q = 30

15 + 5q = 30

5q = 30 - 15

5q = 15

q = 3

Hope it HELPS!!

Thank you ✌️

Discussion

32.	A bag contains 3 red balls, 3 blue balls, and 9 green balls. Ashish draws 2 balls out of the bag. What is the probability that he gets a green ball and a red ball?
Answer» ANSWER: Given- Red balls = 3 Blue balls = 3 Green balls = 9 Total balls = 15 To find: PROBABILITY of getting a green and red ball. Solution : We know that, Probability = Favourable OUTCOMES/Total outcomes Here, favourable outcomes = green and red ball ( 3 + 9 = 12 ) Total outcomes = 15 → Probability = 12/15 => 4/5 Hence, probability will be 4/5.

32.

A bag contains 3 red balls, 3 blue balls, and 9 green balls. Ashish draws 2 balls out of the bag. What is the probability that he gets a green ball and a red ball?

Answer»

ANSWER:

Given-

Red balls = 3
Blue balls = 3
Green balls = 9
Total balls = 15

To find:

PROBABILITY of getting a green and red ball.

Solution :

We know that,

Probability = Favourable OUTCOMES/Total outcomes

Here, favourable outcomes = green and red ball ( 3 + 9 = 12 )

Total outcomes = 15

→ Probability = 12/15 => 4/5

Hence, probability will be 4/5.

Discussion

33.	Is) Inquadrilateral ABCD AB is parrelle to CDand AD is parrelle to BC prove thatangle ABC is equal to angle ADC
Answer» Answer: Step-by-step explanation: PROVE:- AB\|\|CD(given) AD\|\|BC(given) Draw AC diagonal ∆ABC and ∆ADC AD=BC (OPPOSITE SIDE) AB=CD (opposite side) AC=AC( common side) THEREFORE, ∆ABC CONGRUENCE ∆ADC ( S.S.S) Step-by-step explanation:

33.

Is) Inquadrilateral ABCD AB is parrelle to CDand AD is parrelle to BC prove thatangle ABC is equal to angle ADC

Answer»

Answer:

Step-by-step explanation:

PROVE:- AB||CD(given)

AD||BC(given)

Draw AC diagonal

∆ABC and ∆ADC

AD=BC (OPPOSITE SIDE)

AB=CD (opposite side)

AC=AC( common side)

THEREFORE,

∆ABC CONGRUENCE ∆ADC ( S.S.S)

Step-by-step explanation:

Discussion

34.	70-80,80-90,90-100,100-110,110-120No. of workers 10,12,9,5,4 The following distribution gives the daily income of 40 workers of a factory
Answer» Answer: what you WANT mean ,median, mode, FREQUENCY distribution table? MARK me as BRAINLIEST and please FOLLOW me so that I can answer your questions quickly ☺️☺️

34.

70-80,80-90,90-100,100-110,110-120No. of workers 10,12,9,5,4 The following distribution gives the daily income of 40 workers of a factory

Answer»

Answer:

what you WANT mean ,median, mode, FREQUENCY distribution table?

MARK me as BRAINLIEST and please FOLLOW me so that I can answer your questions quickly ☺️☺️

Discussion

35.	Divide 3√135 and 3√5
Answer» it WOULD be 5.19615242271 (APPROX) HOPE it HELPS THANKS

35.

Divide 3√135 and 3√5

Answer»

it WOULD be

5.19615242271 (APPROX)

HOPE it HELPS

THANKS

Discussion

36.	Sin 9 degree by cos 81 degree + sin 45 degree
Answer» $\underline{\textsf{Given:}}$ $\mathsf{\dfrac{sin\,9^{\circ}}{cos\,81^{\circ}}+sin\,45^{\circ}}$ $\underline{\textsf{To find:}}$ $\textsf{The value of the given expression}$ $\underline{\textsf{Solution:}}$ $\textsf{Consider,}$ $\mathsf{\dfrac{sin\,9^{\circ}}{cos\,81^{\circ}}+sin\,45^{\circ}}$ $\textsf{Using}$ $\boxed{\mathsf{sin\,\theta=cos(90^{\circ}-\theta)}}$ $\mathsf{=\dfrac{cos(90^{\circ}-9^{\circ})}{cos\,81^{\circ}}+sin\,45^{\circ}}$ $\mathsf{=\dfrac{cos\,81^{\circ}}{cos\,81^{\circ}}+sin\,45^{\circ}}$ $\mathsf{=1+\dfrac{1}{\sqrt{2}}}$ $\mathsf{=\dfrac{\sqrt{2}+1}{\sqrt{2}}}$ $\underline{\textsf{Answer:}}$ $\mathsf{\dfrac{sin\,9^{\circ}}{cos\,81^{\circ}}+sin\,45^{\circ}=\dfrac{\sqrt{2}+1}{\sqrt{2}}}$

36.

Sin 9 degree by cos 81 degree + sin 45 degree

Answer»

$\underline{\textsf{Given:}}$

$\mathsf{\dfrac{sin\,9^{\circ}}{cos\,81^{\circ}}+sin\,45^{\circ}}$

$\underline{\textsf{To find:}}$

$\textsf{The value of the given expression}$

$\underline{\textsf{Solution:}}$

$\textsf{Consider,}$

$\mathsf{\dfrac{sin\,9^{\circ}}{cos\,81^{\circ}}+sin\,45^{\circ}}$

$\textsf{Using}$

$\boxed{\mathsf{sin\,\theta=cos(90^{\circ}-\theta)}}$

$\mathsf{=\dfrac{cos(90^{\circ}-9^{\circ})}{cos\,81^{\circ}}+sin\,45^{\circ}}$

$\mathsf{=\dfrac{cos\,81^{\circ}}{cos\,81^{\circ}}+sin\,45^{\circ}}$

$\mathsf{=1+\dfrac{1}{\sqrt{2}}}$

$\mathsf{=\dfrac{\sqrt{2}+1}{\sqrt{2}}}$

$\underline{\textsf{Answer:}}$

$\mathsf{\dfrac{sin\,9^{\circ}}{cos\,81^{\circ}}+sin\,45^{\circ}=\dfrac{\sqrt{2}+1}{\sqrt{2}}}$

Discussion

37.	S. Express 0.47 in the form where p and q are integers and q+0. (2m)
Answer» Answer: 47/100 Step-by-step explanation: 0.47 deduct the decimal 47/100

37.

S. Express 0.47 in the form where p and q are integers and q+0. (2m)

Answer»

Answer:

47/100

Step-by-step explanation:

0.47

deduct the decimal

47/100

Discussion

38.	9) By what number will you multiply:(i) 20 to get -100? (ii) -60 to get 300?(iii) -55 to get -110?(iv) -85 to get 0?10) Find the result when:(i) the sum of the first four negativeintegers is multiplied by the greatestnegative number(ii) the sum of the first four positiveintegers is multiplied by the sum of allintegers from – 2 to 2.
Answer» Answer: 9.i)-5 II)5 iii)2 iv)0 10.i)(-1)+(-2)+(-3)+(-4) × (-1) =(-10) × (-1) =10 ii)1+2+3+4 × (-1)+(-2) =10 × (-3) =-30 Hope It Helps You.... Plz mark my answer as the brainliest...

38.

9) By what number will you multiply:(i) 20 to get -100? (ii) -60 to get 300?(iii) -55 to get -110?(iv) -85 to get 0?10) Find the result when:(i) the sum of the first four negativeintegers is multiplied by the greatestnegative number(ii) the sum of the first four positiveintegers is multiplied by the sum of allintegers from – 2 to 2.

Answer»

Answer:

9.i)-5 II)5 iii)2 iv)0

10.i)(-1)+(-2)+(-3)+(-4) × (-1)

=(-10) × (-1)

=10

ii)1+2+3+4 × (-1)+(-2)

=10 × (-3)

=-30

Hope It Helps You....

Plz mark my answer as the brainliest...

Discussion

39.	2. Find the sum :(a) 567 and -897
Answer» Answer: 567 +-897 =391 Hope it HELPS you

39.

2. Find the sum :(a) 567 and -897

Answer»

Answer:

567 +-897

=391

Hope it HELPS you

Discussion

40.	Divide 6 5√64 by 2 5√2
Answer» Answer:14.70 Step-by-step EXPLANATION:

40.

Divide 6 5√64 by 2 5√2

Answer»

Answer:14.70

Step-by-step EXPLANATION:

Discussion

41.	Solve this equation by cross multiplication questionsEquation 1 :2x^2-x+l=0Equation 2: x^2 -3x-m=0
Answer» Answer: 3x+2y=10---(1) 4x−2y=4---(2) Using formula for CROSS multiplication method: (b 1 c 2 −b 2 c 1 ) x = (c 1 a 2 −a 1 c 2 ) y = (a 1 b 2 −a 2 b 1 ) −1 So, from equation (1) and (2) we can write the VALUE of a,b and c. 2×4−(−2)×10 x = 10×4−3×4 y = 3×(−2)−4×2 −1 8+20 x = 40−12 y = −6−8 −1 28 x = 28 y = −14 −1 28 x = −14 −1 −14x=−28 x=2 28 y = −14 −1 −14y=−28 y=2 Therefore, x=2,y=2

41.

Solve this equation by cross multiplication questionsEquation 1 :2x^2-x+l=0Equation 2: x^2 -3x-m=0

Answer»

Answer:

3x+2y=10---(1)

4x−2y=4---(2)

Using formula for CROSS multiplication method:

(b

1

c

2

−b

2

c

1

)

x

=

(c

1

a

2

−a

1

c

2

)

y

=

(a

1

b

2

−a

2

b

1

)

−1

So, from equation (1) and (2) we can write the VALUE of a,b and c.

2×4−(−2)×10

x

=

10×4−3×4

y

=

3×(−2)−4×2

−1

8+20

x

=

40−12

y

=

−6−8

−1

28

x

=

28

y

=

−14

−1

28

x

=

−14

−1

−14x=−28

x=2

28

y

=

−14

−1

−14y=−28

y=2

Therefore, x=2,y=2

Discussion

42.	Split the middle term: x^2 + 9x - 1620.
Answer» Step-by-step explanation: The first term is, x2 its coefficient is 1 . The middle term is, +9X its coefficient is 9 . The last term, "the constant", is -1620 Step-1 : Multiply the coefficient of the first term by the constant 1 • -1620 = -1620 Step-2 : Find two factors of -1620 whose sum equals the coefficient of the middle term, which is 9 . -1620 + 1 = -1619 -810 + 2 = -808 -540 + 3 = -537 -405 + 4 = -401 -324 + 5 = -319 -270 + 6 = -264 -180 + 9 = -171 -162 + 10 = -152 -135 + 12 = -123 -108 + 15 = -93 -90 + 18 = -72 -81 + 20 = -61 -60 + 27 = -33 -54 + 30 = -24 -45 + 36 = -9 -36 + 45 = 9

42.

Split the middle term: x^2 + 9x - 1620.

Answer»

Step-by-step explanation:

The first term is, x2 its coefficient is 1 .

The middle term is, +9X its coefficient is 9 .

The last term, "the constant", is -1620

Step-1 : Multiply the coefficient of the first term by the constant 1 • -1620 = -1620

Step-2 : Find two factors of -1620 whose sum equals the coefficient of the middle term, which is 9 .

-1620 + 1 = -1619

-810 + 2 = -808

-540 + 3 = -537

-405 + 4 = -401

-324 + 5 = -319

-270 + 6 = -264

-180 + 9 = -171

-162 + 10 = -152

-135 + 12 = -123

-108 + 15 = -93

-90 + 18 = -72

-81 + 20 = -61

-60 + 27 = -33

-54 + 30 = -24

-45 + 36 = -9

-36 + 45 = 9

Discussion

43.	How many term of ap 5,8,11... add upto 670
Answer» ANSWER: here, A.P = 5,8,11........ 670 a = 5 d = 3 Tn = a+(N-1)d 670= 5+(n-1)3 670= 5+3n-3 670= 2+ 3n 670-2= 3n 668=3n 668/3= n

43.

How many term of ap 5,8,11... add upto 670

Answer»

ANSWER:

here,

A.P = 5,8,11........ 670

a = 5

d = 3

Tn = a+(N-1)d

670= 5+(n-1)3

670= 5+3n-3

670= 2+ 3n

670-2= 3n

668=3n

668/3= n

Discussion

44.	The algebraic form of anAS is 4n+1what is its common differencewhat is first team
Answer» ANSWER: common difference = 4 first term = 5 Step-by-step EXPLANATION: S= 4n+1 first term will be when n=1 1st term = 41+1 = 5 common difference(d) is the difference between 2 consecutive terms 2nd term = 42+1 = 9 d = 9-5 = 4 please mark my answer as the BRAINLIEST ANS3

44.

The algebraic form of anAS is 4n+1what is its common differencewhat is first team

Answer»

ANSWER:

common difference = 4

first term = 5

Step-by-step EXPLANATION:

S= 4n+1

first term will be when n=1

1st term = 4*1+1 = 5

common difference(d) is the difference between 2 consecutive terms

2nd term = 4*2+1 = 9

d = 9-5 = 4

please mark my answer as the BRAINLIEST ANS3

Discussion

45.	The least number which must be added to make 4725 a perfect square
Answer» Answer: HEY FRIEND here is your answer Step-by-step explanation: 36 is the number hope it HELPS you if you want plz mark my answer BRANLIST plz

45.

The least number which must be added to make 4725 a perfect square

Answer»

Answer:

HEY FRIEND here is your answer

Step-by-step explanation:

36 is the number

hope it HELPS you if you want plz mark my answer BRANLIST plz

Discussion

46.	What is meant by GCD . Answer fast I will mark as brainliest.
Answer» In MATHEMATICS, the greatest common divisor (gcd) of TWO or more integers, which are not all zero, is the largest positive integer that divides each of the integers. For example, the gcd of 8 and 12 is 4. *please* *follow* me *and* *mark* me *brainliest* *ALSO*... ✌✌✌✌

46.

What is meant by GCD . Answer fast I will mark as brainliest.

Answer»

In MATHEMATICS, the greatest common divisor (gcd) of TWO or more integers, which are not all zero, is the largest positive integer that divides each of the integers. For example, the gcd of 8 and 12 is 4.

please follow me and mark me brainliest ALSO...

✌✌✌✌

Discussion

47.	In triangle ABC, AD _I_ BC. Prove that AB²-BD² = AC²-CD²
Answer» In triangle ABC, AD is perpendicular to BC. Proof: In triangle, ABD;ADsquare=ABsquare -BDsquare- (1eq). In triangle,ADC:ABsq=ACsq-CDsq(2eq). From (1eq) and (2eq),we get:ABsq-BDsq=ACsq-CDsq.

Discussion

48.	Solve for x√7x*2 – 6x – 13 √7
Answer» ANSWER: 12578 answer I am BRILLIAN ONE

48.

Solve for x√7x*2 – 6x – 13 √7

Answer»

ANSWER:

12578 answer I am BRILLIAN ONE

Discussion

49.	Sameer walks 1 km 150 m on every Sunday morning. Calculate the distance (in kilometres) he walks in March, considering that there are 4 Sundays in March.
Answer» Answer: Step-by-step explanation: No of KM he WALKS in MARCH = 4 *1.15 = 4.6 km THIS IS YOUR ANSWER HOPE IT HELPS U

49.

Sameer walks 1 km 150 m on every Sunday morning. Calculate the distance (in kilometres) he walks in March, considering that there are 4 Sundays in March.

Answer»

Answer:

Step-by-step explanation:

No of KM he WALKS in MARCH = 4 *1.15

= 4.6 km

THIS IS YOUR ANSWER

HOPE IT HELPS U

Discussion

50.	The sum of first 15term of the series 1+2+3+......+15
Answer» ANSWER: z Step-by-step EXPLANATION: HEY here is your answer. PLZ follow and mark as brainlist

50.

The sum of first 15term of the series 1+2+3+......+15

Answer»

ANSWER:

z

Step-by-step EXPLANATION:

HEY here is your answer.

PLZ follow and mark as brainlist

Discussion

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please follow me and mark me brainliest ALSO...

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