Hot questions

0 votes

0 answers

The area of a rectangle is `x2 + 7x + 12`. If its breadth is (x + 3), then find its

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

0 votes

0 answers

The curved surface area of a cylinder is `2pi (y^2 – 7y + 12)` and its radius is (y – 3). Find the height of the cylinder (C.S.A. of cylinder

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

0 votes

0 answers

The height of a triangle is `x^4 + y^4` and its base is 14xy. Find the area of the

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

0 votes

0 answers

If a + b = 25 and `a^2 + b^2 = 225`, then find

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

0 votes

0 answers

If `x-1/x=7` then find the value of

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

0 votes

0 answers

Multiplicative inverse of `2^7`

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

0 votes

0 answers

`(-4)^4 xx(5/4)^4`

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

0 votes

0 answers

If x be any non-zero integer, then `x^–1` is equal

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

0 votes

0 answers

Very small numbers can be expressed in standard form by using _________

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

0 votes

0 answers

`[(2/13)^(-1) -: (2/13)^3]^3 xx (2/13)^(-13)` =

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

0 votes

0 answers

`3^5 -: 3^–6` can be simplified as

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

0 votes

0 answers

On multiplying _________ by `2^(–5)` we get

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

0 votes

0 answers

The expression for `3^5` with a negative exponent is

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

0 votes

0 answers

`10^(–2) =

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

0 votes

0 answers

`(2/3)^(-2) xx (2/3)^(-5) =

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

0 votes

0 answers

Simplify: -1. `(49 xx z^(-3))/(7^(-3) xx 10 xx z^(-5))`

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

0 votes

0 answers

`(2^n xx 2^6)/2^(-13) =

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

0 votes

0 answers

This table shows the mass of one atom for five chemical elements. Use it to answer the question given. Element Mass of atom (kg) TitaniumLeadSilverLithiumHydrogen `7.95 × 10^(–26)` `3.44 × 10^(–25) ``1.79 × 10^(–25)``1.15 × 10^(–26)``1.674 × 10^(–27) `

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

0 votes

0 answers

The volume of the Earth is approximately `7.67 xx 10^(–7)` times the volume of the Sun. Express this figure in usual

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

0 votes

0 answers

A half-life is the amount of time that it takes for a radioactive substance to decay to one half of its original quantity. Suppose radioactive decay causes 300 grams of a substance to decrease to `300 xx 2^(–3)` grams after 3 half-lives. Evaluate `300 xx 2^(–3)` to determine how many grams of the substance are left. Explain why the expression `300 xx 2^(–n)` can be used to find the amount of the substance that remains after n

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

Hot questions

Categories