Hot questions

0 votes

0 answers

The areas of any two faces of a cube are

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

0 votes

0 answers

If the length of each edge of a cube is tripled, what will be the change in its

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

0 votes

0 answers

Factorise the following using the identity `a^2 – b^2 = (a + b) (a – b)`. `16x^4 –

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

0 votes

0 answers

Factorise the expressions and divide them as directed: `(9x^2 – 4) -: (3x +

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

0 votes

0 answers

Factorise the expressions and divide them as directed: `(3x^2 – 48) -: (x –

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

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 yogita (1.8k points)

0 votes

0 answers

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

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

0 votes

0 answers

By multiplying `(10)^5` by `(10)^(–10)` we get

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

0 votes

0 answers

`[2^(–1) + 3^(–1) + 4^(–1)]^0` =

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

0 votes

0 answers

By multiplying `(5/3)^4` by ________ we get

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

0 votes

0 answers

Express as a power of a rational number with negative exponent. (a) `(((-3)/2)^(-2))^(-3)` (b) `(2^5 -: 2^8) xx

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 krutika (1.7k points)

0 votes

0 answers

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

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

0 votes

0 answers

If `(5^m xx 5^3 xx 5^(-2))/5^-5 = 5^12`, find

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

Repeater Machine Similarly, repeater machine is a hypothetical machine which automatically enlarges items several times. For example, sending a piece of wire through a `(xx 2^4)` machine is the same as putting it through a (xx 2) machine four times. So, if you send a 3 cm piece of wire through a `(xx 2^4)` machine, its length becomes `3 xx 2 xx 2 xx 2 xx 2 = 48` cm. It can also be written that a base (2) machine is being applied 4 times. What will be the new length of a 4 cm strip inserted in

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

0 votes

0 answers

If a = – 1, b = 2, then find the value of the following: (1) `a^b + b^a` (2) `a^b – b^a` (3) `a^b xx b^2` (4) `a^b ¸

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

0 votes

0 answers

If `7/3%` of a number is 42, then the number

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

Hot questions

Categories