Hot questions

0 votes

0 answers

Add the following. ab – bc, bc – ca, ca – ab

asked Jan 17, 2022 in 8th-maths by Simran (1.8k points)

0 votes

0 answers

Find the product of the following pairs of monomials. `– 4p, 7pq`

asked Jan 17, 2022 in 8th-maths by Simran (1.8k points)

0 votes

0 answers

Complete the table of products. First monomial → Second monomial ↓ `2x` `-5y` `3x^2` `-4xy` `7x^2 y` `–9x^2 y^2` `2x ` `4x^2` . . . . . . . . . . . . . . . `–5y` . . . . . . `–15x^2 y` . . . . . . . . . `3x^2` . . . . . . . . . . . . . . . `– 4xy` . . . . . . . . . . . . .

asked Jan 17, 2022 in 8th-maths by purvi (1.8k points)

0 votes

0 answers

Obtain the volume of rectangular boxes with the following length, breadth and heightrespectively. `5a, 3a^2,

asked Jan 17, 2022 in 8th-maths by krutika (1.7k points)

0 votes

0 answers

Obtain the volume of rectangular boxes with the following length, breadth and heightrespectively. 2p, 4q, 8r

asked Jan 17, 2022 in 8th-maths by Arun (1.7k points)

0 votes

0 answers

Simplify the expressions and evaluate them as directed: x (x – 3) + 2 for x = 1,

asked Jan 17, 2022 in 8th-maths by purvi (1.8k points)

0 votes

0 answers

Add `4y (3y^2 + 5y – 7)` and `2 (y^3 – 4y^2 +

asked Jan 17, 2022 in 8th-maths by nishit (1.8k points)

0 votes

0 answers

Carry out the multiplication of the expressions in each of the following pairs. `4p, q + r`

asked Jan 17, 2022 in 8th-maths by nikhil (1.8k points)

0 votes

0 answers

Carry out the multiplication of the expressions in each of the following pairs. `ab, a –

asked Jan 17, 2022 in 8th-maths by Arun (1.7k points)

0 votes

0 answers

Using Identity (III), find

asked Jan 17, 2022 in 8th-maths by krutika (1.7k points)

0 votes

0 answers

Use a suitable identity to get each of the following products. (2a – 7) (2a –

asked Jan 17, 2022 in 8th-maths by nishit (1.8k points)

0 votes

0 answers

Using `(x + a) (x + b) = x^2 + (a + b) x + ab`, find `9.7 xx

asked Jan 17, 2022 in 8th-maths by nishit (1.8k points)

0 votes

0 answers

Verify Euler’s formula for these

asked Jan 17, 2022 in 8th-maths by sumit (1.6k points)

0 votes

0 answers

An aquarium is in the form of a cuboid whose external measures are `80 cm xx 30 cm xx 40 cm`. The base, side faces and back face are to be covered with a coloured paper. Find the area of the paper

asked Jan 17, 2022 in 8th-maths by uday (1.6k points)

0 votes

0 answers

Simplify and write the answer in the exponential form. `(25 ÷ 28)^5 xx 2^(–

asked Jan 17, 2022 in 8th-maths by krutika (1.7k points)

0 votes

0 answers

Express the following numbers in usual form. `7.54 xx 10^(– 4)`

asked Jan 17, 2022 in 8th-maths by nishit (1.8k points)

0 votes

0 answers

A train is moving at a uniform speed of 75 km/hour. Find the time required to cover a distance of 250

asked Jan 17, 2022 in 8th-maths by Simran (1.8k points)

0 votes

0 answers

Which of the following are in inverse proportion?(i) The number of workers on a job and the time to complete the job.(ii) The time taken for a journey and the distance travelled in a uniform speed.(iii) Area of cultivated land and the crop harvested.(iv) The time taken for a fixed journey and the speed of the vehicle.(v) The population of a country and the area of land per

asked Jan 17, 2022 in 8th-maths by Simran (1.8k points)

0 votes

0 answers

If a box of sweets is divided among 24 children, they will get 5 sweets each. How many would each get, if the number of the children is reduced by

asked Jan 17, 2022 in 8th-maths by yogita (1.8k points)

0 votes

0 answers

A school has 8 periods a day each of 45 minutes duration. How long would each period be, if the school has 9 periods a day, assuming the number of school hours to be the

asked Jan 17, 2022 in 8th-maths by sumit (1.6k points)

Hot questions

Categories