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Opposite faces of a cuboid are _________ in

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

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Find the capacity of water tank, in litres, whose dimensions are 4.2 m, 3 m and 1.8

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

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The following expressions are the areas of rectangles. Find the possible lengths and breadths of these rectangles. `x^2 + 9x +

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

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

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

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The sum of first n natural numbers is given by the expression `n^2/2+n/2`. Factorise this

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

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

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Verify the following: `(5x + 8)^2 – 160x = (5x –

asked Jan 17, 2022 in 8th-maths by vaibhav (1.7k 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 17, 2022 in 8th-maths by sumit (1.6k 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 17, 2022 in 8th-maths by Arun (1.7k points)

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

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

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`[2^(–1) + 3^(–1) + 4^(–1)]^0` =

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

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`3^5 -: 3^–6` can be simplified as

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

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

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

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`(–4)^(–4) xx (4)^(–1) =

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

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Large numbers can be expressed in the standard form by using positive

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

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

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

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Pluto is 59,1,30,00, 000 m from the sun. Express this in the standard

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

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

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

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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)

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