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Obtain the volume of rectangular boxes with the following length, breadth and heightrespectively. `xy, 2x2y,

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

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The diagonals of a rhombus are 7.5 cm and 12 cm. Find its

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

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Find the side of a cube whose surface area is 600

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

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Rukhsar painted the outside of the cabinet of measure `1 m xx 2 m xx 1.5 m`. How much surface area did she cover if she painted all except the bottom of the

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

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A rectangular piece of paper 11 cm × 4 cm is folded without overlapping to make a cylinder of height 4 cm. Find the volume of the

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

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Find m so that `(–3)^(m + 1) xx (–3)^5 =

asked Jan 17, 2022 in 8th-maths by purvi (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 following numbers in standard form. 6020000000000000

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

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Express the number appearing in the following statements in standard form. Thickness of a thick paper is 0.07

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

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A polyhedron has 60 edges and 40 vertices. Find the number of its

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

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The distance between school and house of a girl is given by 5 cm in a picture, using the scale 1 cm : 5 km. Find the actual distance between the two

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

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The actual length of a painting was 2 m. What is its length in the photograph if the scale used is 1 mm : 20 cm.

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

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An equation is true for all values of its

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

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Add: `5x^2 – 3xy + 4y^2 – 9, 7y^2 + 5xy – 2x^2 +

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

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Verify the following: `(7p – 13q)^2 + 364pq = (7p +

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

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Express each of the following in standard form: -1. (a) The mass of a proton in gram is `1673/1000000000000000000000000000` (b) A Helium atom has a diameter of 0.000000022

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

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A particular star is at a distance of about `8.1 xx 10^13` km from the Earth. Assuring that light travels at `3 xx 10^8` m per second, find how long does light takes from that star to reach the

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

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If the cost price of 10 shirts is equal to the selling price of 8 shirts, then which of the following is true for the

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

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After allowing a discount of 15% on the marked price of an article, it is sold for Rs 680. The marked price of the article is Rs

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

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Under the condition that the temperature remains constant, the volume of gas is inversely proportional to its pressure. If the volume of gas is 630 cubic centimetres at a pressure of 360 mm of mercury, then what will be the pressure of the gas if its volume is 720 cubic centimetres at the same

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

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