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Is 392 a perfect cube? If not, find the smallest natural number by which 392 must be multiplied so that the product is a perfect

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

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Parikshit makes a cuboid of plasticine of sides 5 cm, 2 cm, 5 cm. How many such cuboids will he need to form a

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

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State true or false. The cube of a two digit number may be a three digit

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

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The population of a place increased to 54,000 in 2003 at a rate of 5% per annum what would be its population in

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

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Add: 7xy + 5yz – 3zx, 4yz + 9zx – 4y , –3xz + 5x –

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

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Simplify the expressions and evaluate them as directed: x (x – 3) + 2 for x = 1,

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

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Multiply (x – y) and (3x +

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

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Using Identity (II), find `(4p –

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

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Using Identity (III), find `194 xx

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

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Simplify. `(2x + 5)^2 – (2x –

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

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A square and a rectangular field with measurements as given in the figure have the same perimeter. Which field has a larger

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

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The area of a rhombus is 240 `cm^2` and one of the diagonals is 16 cm. Find the other

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

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Length of the fence of a trapezium shaped field ABCD is 120 m. If BC = 48 m, CD = 17 m and AD = 40 m, find the area of this field. Side AB is perpendicular to the parallel sides AD and

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

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The internal measures of a cuboidal room are `12 m xx 8 m xx 4 m`. Find the total cost of whitewashing all four walls of a room, if the cost of white washing is Rs 5 per `m^2`. What will be the cost of white washing if the ceiling of the room is also whitewashed.

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

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Simplify `(– 4)^5 xx (– 4)^(–10)`

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

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Evaluate. `(– 4)^(– 2)`

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

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Evaluate `(5^(–1) xx 2^(–1)) xx

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

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Express the number appearing in the following statements in standard form. Size of a bacteria is 0.0000005

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

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Express the number appearing in the following statements in standard form. Size of a plant cell is 0.00001275

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

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The cost of 5 metres of a particular quality of cloth is Rs 210. Tabulate the cost of 2, 4, 10 and 13 metres of cloth of the same

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

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