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Verify the following: `(a^2 – b^2) (a^2 + b^2) + (b^2 – c^2) (b^2 + c^2) + (c^2 – a^2) + (c^2 + a^2) =

asked Jan 18, 2022 in 8th-maths by yogita (1.8k points)

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

asked Jan 18, 2022 in 8th-maths by uday (1.6k points)

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Find the length of the side of the given square if area of the square is 625 square units and then find the value of x.

asked Jan 18, 2022 in 8th-maths by nikhil (1.8k points)

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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 18, 2022 in 8th-maths by uday (1.6k points)

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

asked Jan 18, 2022 in 8th-maths by purvi (1.8k points)

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The value of `1/4^-2`

asked Jan 18, 2022 in 8th-maths by uday (1.6k points)

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If x be any non-zero integer and m, n be negative integers, then `xm xx xn` is equal

asked Jan 18, 2022 in 8th-maths by nishit (1.8k points)

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`5^5 xx 5^(–5)` =

asked Jan 18, 2022 in 8th-maths by sumit (1.6k points)

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The standard form of `(1/100000000)` is

asked Jan 18, 2022 in 8th-maths by vaibhav (1.7k points)

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`3^5 -: 3^–6` can be simplified as

asked Jan 18, 2022 in 8th-maths by purvi (1.8k points)

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The standard form for 0.000000008 is

asked Jan 18, 2022 in 8th-maths by vaibhav (1.7k points)

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The multiplicative inverse of `(– 4)^(–2) is

asked Jan 18, 2022 in 8th-maths by yogita (1.8k points)

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`(–5)^(–2) xx (–5)^(–3) =

asked Jan 18, 2022 in 8th-maths by sumit (1.6k points)

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`(–4)^(–4) xx (4)^(–1) =

asked Jan 18, 2022 in 8th-maths by Simran (1.8k 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 18, 2022 in 8th-maths by Simran (1.8k points)

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

asked Jan 18, 2022 in 8th-maths by purvi (1.8k points)

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Write 39,00,00,000 in the standard

asked Jan 18, 2022 in 8th-maths by uday (1.6k points)

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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 18, 2022 in 8th-maths by Arun (1.7k points)

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An electron’s mass is approximately `9.1093826 xx 10^(–31)` kilograms. What is this mass in

asked Jan 18, 2022 in 8th-maths by Simran (1.8k points)

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While studying her family’s history. Shikha discovers records of ancestors 12 generations back. She wonders how many ancestors she has had in the past 12 generations. She starts to make a diagram to help her figure this out. The diagram soon becomes very complex. (a) Make a table and a graph showing the number of ancestors in each of the 12

asked Jan 18, 2022 in 8th-maths by vaibhav (1.7k points)

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