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asked Jan 18, 2022 in 8th-maths by vaibhav (1.7k points)

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The area of a trapezium shaped field is 480 `m^2` , the distance between two parallel sides is 15 m and one of the parallel side is 20 m. Find the other parallel

asked Jan 18, 2022 in 8th-maths by nikhil (1.8k points)

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Rehman is making a wheel using spokes. He wants to fix equal spokes in such a way that the angles between any pair of consecutive spokes are equal. Help him bycompleting the following table. sss 8 → 45°, 10 → 36°, 12 → 30° sss Calculate the angle between

asked Jan 18, 2022 in 8th-maths by Arun (1.7k points)

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14y – 8 =

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

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Solve the equation for x

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

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In a stack there are 5 books each of thickness 20mm and 5 paper sheets each of thickness 0.016 mm. What is the total thickness of the

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

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The value of `[3^(–1) xx 4^(–1)]^2` is

asked Jan 18, 2022 in 8th-maths by uday (1.6k points)

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`329.25 = 3 xx 10^2 + 2 xx 10^1 + 9 xx 10^0 + 2 xx 10^–1 + 5 xx

asked Jan 18, 2022 in 8th-maths by yogita (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 18, 2022 in 8th-maths by purvi (1.8k points)

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The students of Anju’s class sold posters to raise money. Anju wanted to create a ratio for finding the amount of money her class would make for different numbers of posters sold. She knew they could raise Rs 250 for every 60 posters sold. (a) How much money would Anju’s class make for selling 102 posters? (b) Could Anju’s class raise exactly Rs 2,000? If so, how many posters would they need to sell? If not,

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

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Describe how the two figures at the right are alike and how they are different. Which box has larger lateral surface

asked Jan 18, 2022 in 8th-maths by krutika (1.7k points)

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

asked Jan 18, 2022 in 8th-maths by Arun (1.7k points)

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Construct the following quadrilaterals. Parallelogram HEAR HE = 5 cm EA = 6 cm ∠R =

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

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Find the cube root of each of the following numbers by prime factorisation method. 15625

asked Jan 17, 2022 in 8th-maths by Arun (1.7k 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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The rational number `57/23` lies to the left of zero on the number

asked Jan 18, 2022 in 8th-maths by krutika (1.7k points)

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In a school only, 3 out of 5 students can participate in a competition. What is the probability of the students who do not make it to the

asked Jan 18, 2022 in 8th-maths by Simran (1.8k points)

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are the number of members in 25 families of a village: `6, 8, 7, 7, 6, 5, 3, 2, 5, 6, 8, 7, 7, 4, 3, 6, 6, 6, 7, 5, 4, 3, 3, 2, 5`. Prepare a frequency distribution table for the data using class intervals `0 –2, 2 –4`,

asked Jan 18, 2022 in 8th-maths by krutika (1.7k points)

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The below histogram shows the number of literate females in the age group of 10 to 40 years in a town. What is the classes

asked Jan 18, 2022 in 8th-maths by krutika (1.7k points)

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If m is the square of a natural number n, then n

asked Jan 18, 2022 in 8th-maths by nikhil (1.8k points)

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