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Find any ten rational numbers between `(-5)/6` and

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

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The denominator of a rational number is greater than its numerator by 8. If the numerator is increased by 17 and the denominator is decreased by 1, the number obtained is `3/2` . Find the rational

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

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Given here are some figures. Classify each of them on the basis of the following.

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

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A rectangle with adjacent sides of lengths 5 cm and 4

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

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

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

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Use the Identity `(x + a) (x + b) = x^2 + (a + b) x + ab` to find the following `95 xx

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

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Can a polyhedron have for its faces 3 triangles?

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

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If each edge of a cube is doubled, how many times will its surface area

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

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A 5 m 60 cm high vertical pole casts a shadow 3 m 20 cm long. Find at the same time the length of the shadow cast by another pole 10 m 50 cm high

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

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If y be any non-zero integer, then `y^0` is equal

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

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`a^p xx b^q =

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

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At the end of the 20th century, the world population was approximately `6.1 xx 10^9` people. Express this population in usual form. How would you say this number in

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

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Sunscreens block harmful ultraviolet (UV) rays produced by the sun. Each sunscreen has a Sun Protection Factor (SPF) that tells you how many minutes you can stay in the sun before you receive one minute of burning UV rays. For example, if you apply sunscreen with SPF 15, you get 1 minute of UV rays for every 15 minutes you stay in the sun. 1. A sunscreen with SPF 15 allows only `1/15` of the sun’s UV rays. What per cent of UV rays does the sunscreen abort? 2. Suppose a sunscreen allows 25% of the sun’s UV rays. a.

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

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The perimeter of a circle and its diameter vary _______ with each

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

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A student used the proportion `n/100 = 5/32`to find 5% of 32. What did the student do

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

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What is the area of the rhombus ABCD below if AC = 6 cm, and BE = 4cm?

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

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Factorise the expressions and divide them as directed: `(x^2 – 22x + 117) -: (x –

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

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Factorise the expressions and divide them as directed: `(3x^4 – 1875) -: (3x^2 –

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

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Verify the following: `(a + b + c) (a^2 + b^2 + c^2 – ab – bc – ca) = a^3 + b^3+ c^3 –

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

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