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Find the length of the largest pole that can be placed in a room of dimensions `12 m xx 4 m xx 3 m`. Find the area of the following fields. All dimensions are in

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

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A carpenter makes a box which has a volume of 13,400 `cm^3`. The base has an area of 670 `cm^2`. What is the height of the

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

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How many cubes each of side 0.5 cm are required to build a cube of volume 8 `cm^3`

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

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A hollow garden roller of 42 cm diameter and length 152 cm is made of cast iron 2 cm thick. Find the volume of iron used in the

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

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

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

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

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

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Factorise the following using the identity `a^2 – b^2 = (a + b) (a – b)`. `9x^2 – (3y +

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

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The following expressions are the areas of rectangles. Find the possible lengths and breadths of these rectangles. `–121p^3q^3r^3 -:

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

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Perform the following divisions: `(– qrxy + pryz – rxyz) -: (–

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

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The cost of a chocolate is Rs (x + y) and Rohit bought (x + y) chocolates. Find the total amount paid by him in terms of x. If x = 10, find the amount paid by

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

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The base of a parallelogram is (2x + 3 units) and the corresponding height is (2x – 3 units). Find the area of the parallelogram in terms of x. What will be the area of parallelogram of x = 30

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

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Verify the following: `(ab + bc) (ab – bc) + (bc + ca) (bc – ca) + (ca + ab) (ca – ab) =

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

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Find the value of a, if `9a = 76^2 –

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

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Factorise

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

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

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

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Very small numbers can be expressed in standard form using positive

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

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For a fixed base, if the exponent decreases by 1, the number

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

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If x be any integer different from zero and m, n be any integers, then `(x^m)^n` is equal

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

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The standard form for 0.000064

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

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