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For a non-zero rational number z, `(z^-2)^3` is equal

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

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Cube of `-1/2`

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

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Express `27/64` and `(-27)/64` as powers of a rational

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

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Simplify: -1. `(1/4)^(-2) + (1/2)^(-2) +

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

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Simplify: -1. `(((-)/2)^(-2))^3 xx (1/3)^(-4) xx 3^(-1) xx

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

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Find x so that `(2/9)^3 xx (2/9)^(-6) =

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

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This table shows the mass of one atom for five chemical elements. Use it to answer the question given. Element Mass of atom (kg) TitaniumLeadSilverLithiumHydrogen `7.95 × 10^(–26)` `3.44 × 10^(–25) ``1.79 × 10^(–25)``1.15 × 10^(–26)``1.674 × 10^(–27) `

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

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While studying her family’s history. Shikha discovers records of ancestors 12 generations back. She wonders how many ancestors she has had in the past 12 generations. She starts to make a diagram to help her figure this out. The diagram soon becomes very complex. (a) Make a table and a graph showing the number of ancestors in each of the 12

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

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Shrinking Machine In a shrinking machine, a piece of stick is compressed to reduce its length. If 9 cm long sandwich is put into the shrinking machine below, how many cm long will it be when it emerges?

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

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What happens when 1 cm worms are sent through these hook-ups?

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

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Shikha has an order from a golf course designer to put palm trees through a `(xx 2^3)` machine and then through a `(xx 3^3)` machine. She thinks she can do the job with a single repeater machine. What single repeater machine should she use?

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

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Find three machines that can be replaced with hook-ups of `(xx 5)`

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

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Simplify:

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

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Vishakha offers a discount of 20% on all the items at her shop and still makes a profit of 12%. What is the cost price of an article marked at Rs

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

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Suppose a certain sum doubles in 2 years at r % rate of simple interest per annum or at R% rate of interest per annum compounded annually. We

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

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If marked price of an article is Rs 1,200 and the discount is 12% then the selling price of the article

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

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If a % is the discount per cent on a marked price x, then discount

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

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A jacket was sold for Rs 1,120 after allowing a discount of 20%. The marked price of the jacket

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

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Find the M.P. if (a) S.P. = Rs 495 and discount = 1% (b) S.P. = Rs 9,250 and discount = `7

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

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The marked price of an article is Rs 500. The shopkeeper gives a discount of 5% and still makes a profit of 25%. Find the cost price of the

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

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