Recent questions tagged #sub

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The figure shows the dimensions of a wall having a window and a door of a room. Write an algebraic expression for the area of the wall to be painted.

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

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Match the expressions of column I with that of column II: Column I Column II (1) `(21x + 13y)^2` (a) `441x^2 – 169y^2` (2) `(21x – 13y)^2` (b) `441x^2 + 169y^2 + 546xy` (3) `(21x – 13y) (21x + 13y)` (c) `441x^2 + 169y^2 – 546xy` (d) `441x^2 – 169y^2 + 546xy`

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

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Simplify

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

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Find x so that `(–5)^(x+1) xx (–5)^5 =

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

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Solve the following:(i) `100^(–10)` (ii) `2^(–2) xx 2^(–3)` (iii) `(1/2)^(-2) -:

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

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Express `3^(–5) xx 3^(–4)` as a power of 3 with positive

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

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Express `16^(–2)` as a power with the base

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

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Express `27/64` and `(-27)/64` as powers of a rational

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

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Express `16/18` and `(-16)/18` as powers of a rational

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

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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 yogita (1.8k points)

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Find the product of the cube of (–2) and the square of

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

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Simplify: -1. `(1/4)^(-2) + (1/2)^(-2) +

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

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Simplify: -1. `(((-)/2)^(-2))^3 xx (1/3)^(-4) xx 3^(-1) xx

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

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

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

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Simplify: -1. `(2^5 -: 28) xx

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

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Find the value of x so that `(5/3)^(-3) xx (5/3)^(-14) =

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

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Find the value of x so that `(–2)^3 xx (–2)^(–6) =

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

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Find the value of x so that `(2^(–1) + 4^(–1) + 6^(–1) + 8^(–1))x =

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

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Divide 293 by 10,00,000 and express the result in standard

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

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Find the value of `x^(–3)` if `x = (100)^(1–4) -:

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

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