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The radius of a circle is 7ab – 7bc – 14ac. Find the circumference of the circle.

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

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Verify the following: `(a^2 – b^2) (a^2 + b^2) + (b^2 – c^2) (b^2 + c^2) + (c^2 – a^2) + (c^2 + a^2) =

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

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`3^(–2)` can be written

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

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`[2^(–1) + 3^(–1) + 4^(–1)]^0` =

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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The value of `(1/4)^(-2)` is equal to

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

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Express `(1.5 xx 10^6)/(2.5 xx 10^(-6))` in the standard

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

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`6^n/6^(-2) =

asked Jan 17, 2022 in 8th-maths by Simran (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 nikhil (1.8k 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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When two quantities are related in such a manner that if one increases and the other decreases, then they always vary

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

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If 25 metres of cloth costs Rs 337.50, then (i) What will be the cost of 40 metres of the same type of cloth? (ii) What will be the length of the cloth bought for Rs

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

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Campus and Welfare Committee of school is planning to develop a blue shade for painting the entire school building. For this purpose various shades are tried by mixing containers of blue paint and white paint. In each of the following mixtures, decide which is a lighter shade of blue and also find the lightest blue shade among all of them. If one container has one litre paint and the building requires 105 litres for painting, how many container of each type is required to paint the building by darkest blue

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

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The following table shows the distance travelled by one of the new eco-friendly energy-efficient cars travelled on gas. Litres of gas 1 0.5 2 2.5 3 5 Distance (km) 15 7.5 30 37.5 45 75 Which type of properties are indicated by the table? How much distance will be covered by the car in 8 litres of

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

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A six-digit number is formed by repeating a three-digit number. For example 256256, 678678, etc. Any number of this form is divisible

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

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If a 3-digit number abc is divisible by 11, then ______ is either 0 or multiple of

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

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Verify that – (– x) = x for `x =

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

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Is `8/9` the multiplicative inverse of `-1 1/8`? Why or why

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

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Find five rational numbers between. `2/3` and

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

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(i) Express 49 as the sum of 7 odd

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

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