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Simplify and write the answer in the exponential form. `(25 ÷ 28)^5 xx 2^(–

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

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Simplify and write the answer in the exponential form. `(– 4)^(– 3) xx (5)^(– 3) xx

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

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Express the following numbers in usual form. `7.54 xx 10^(– 4)`

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 a box of sweets is divided among 24 children, they will get 5 sweets each. How many would each get, if the number of the children is reduced by

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

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A farmer has enough food to feed 20 animals in his cattle for 6 days. How long would the food last if there were 10 more animals in his

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

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What should be added to `4c (– a + b + c)` to obtain `3a (a + b + c) – 2b(a – b +

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

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On dividing `8^5` by _________ we get

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

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If `(5^m xx 5^3 xx 5^(-2))/5^-5 = 5^12`, find

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

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Planet A is at a distance of `9.35 xx 10^6` km from Earth and planet B is `6.27 xx 10^7` km from Earth. Which planet is nearer to

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

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The given table shows the crop production of a State in the year 2008 and 2009. Observe the table given below and answer the given questions. Crop 2008 Harvest (Hectare) Increase/Decrease (Hectare) in 2009 Bajra `1.4 × 10^3` – 100 Jowar `1.7 × 10^6` -440,000 Rice `3.7 × 10^3` – 100 Wheat `5.1 × 10^5` + 190,000 (a) For which crop(s) did the production decrease? (b) Write the production of all the crops in 2009 in their standard form. (c) Assuming the same

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

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A shopkeeper was selling all his items at 25% discount. During the off season, he offered 30% discount over and above the existing discount. If Pragya bought a skirt which was marked for Rs 1,200, how much did she pay for

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

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Which quantities in the previous question vary inversely with each

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

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The value of `3 xx 10^(-7)` is equal to

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

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The standard form for 0.000037 is `3.7 xx

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

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Planet A is at a distance of `9.35 xx 10^6` km from Earth and planet B is `6.27 xx 10^7` km from Earth. Which planet is nearer to

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

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Jyotsana bought a product for Rs 3,155 including 4.5% sales tax. Find the price before tax was

asked Jan 17, 2022 in 8th-maths by uday (1.6k 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 yogita (1.8k points)

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The area of a square is `9x^2 + 24xy + 16y^2`. Find the side of the

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

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