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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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If xy = 10, then x and y vary ______ with each

asked Jan 17, 2022 in 8th-maths by krutika (1.7k 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 nikhil (1.8k points)

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If xy = 10, then x and y vary ______ with each

asked Jan 17, 2022 in 8th-maths by vaibhav (1.7k 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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The following expressions are the areas of rectangles. Find the possible lengths and breadths of these rectangles. `x^2 – 3x +

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

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Perform the following divisions: `(x^3y^3 + x^2y^3 – xy^4 + xy) -:

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

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Find the length of the side of the given square if area of the square is 625 square units and then find the value of x.

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

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The usual form of `3.41 xx 10^6` is

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

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By solving `(6^0 – 7^0) xx (6^0 + 7^0)` we get

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

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One Fermi is equal to `10^(–15)` metre. The radius of a proton is 1.3 Fermis. Write the radius of a proton in metres in standard

asked Jan 17, 2022 in 8th-maths by yogita (1.8k 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 vaibhav (1.7k points)

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If a tree 24 m high casts a shadow of 15 m, then the height of a pole that casts a shadow of 6 m under similar conditions is 9.6

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

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In a hostel of 50 girls, there are food provisions for 40 days. If 30 more girls join the hostel, how long will these provisions

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

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A packet of sweets was distributed among 10 children and each of them received 4 sweets. If it is distributed among 8 children, how many sweets will each child

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

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From a pipe of inner radius 0.75 cm, water flows at the rate of 7 m per second. Find the volume in litres of water delivered by the pipe in 1

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

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The number of students in a hostel, speaking different languages is given below. Display the data in a pie chart. Language Hindi English Marathi Tamil Bengali Total Numberof students 40 12 9 7 4 72

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

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When a die is thrown, list the outcomes of an event of getting(i) (a) a prime number (b) not a prime number. (c) a number greater than 5 (d) a number not greater than

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

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2025 plants are to be planted in a garden in such a way that each row contains as many plants as the number of rows. Find the number of rows and the number of plants in each

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

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There are 2401 students in a school. P.T. teacher wants them to stand in rows and columns such that the number of rows is equal to the number of columns. Find the number of

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

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