Questions by Simran

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asked Jan 17, 2022 in 8th-maths

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asked Jan 17, 2022 in 8th-maths

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

asked Jan 17, 2022 in 8th-maths

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The usual form for `2 xx 10^(–2)` is not equal to

asked Jan 17, 2022 in 8th-maths

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Write 0.000005678 in the standard

asked Jan 17, 2022 in 8th-maths

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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

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The number of red blood cells per cubic millimetre of blood is approximately 5.5 million. If the average body contains 5 litres of blood, what is the total number of red cells in the body? Write the standard form. (1 litre = 1,00,000

asked Jan 17, 2022 in 8th-maths

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asked Jan 17, 2022 in 8th-maths

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`(16 xx 10^2 xx 64)/(2^4 xx

asked Jan 17, 2022 in 8th-maths

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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

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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

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The paper clip below has the indicated length. What is the length in standard form.

asked Jan 17, 2022 in 8th-maths

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There are 864,00 seconds in a day. How many days long is a second? Express your answer in scientific

asked Jan 17, 2022 in 8th-maths

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

asked Jan 17, 2022 in 8th-maths

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Find a single machine that will do the same job as the given hook-up. (a) a`(xx 2^3)` machine followed by `(xx 2^(–2))` machine. (b) a`(xx 2^4)` machine followed by `(xx(1/2)^2)` machine (c) a`(xx 5^99)` machine followed by a `(5^(–100))`

asked Jan 17, 2022 in 8th-maths

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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

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The left column of the chart lists the lengths of input pieces of ribbon. Stretching machines are listed across the top. The other entries are the outputs for sending the input ribbon from that row through the machine from that column. Copy and complete the chart.

asked Jan 17, 2022 in 8th-maths

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If a = – 1, b = 2, then find the value of the following: (1) `a^b + b^a` (2) `a^b – b^a` (3) `a^b xx b^2` (4) `a^b ¸

asked Jan 17, 2022 in 8th-maths

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Express each of the following in exponential form: (1) `(-1296)/14641` (2) `(-125/343)` (3) `400/3969` (4)

asked Jan 17, 2022 in 8th-maths

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After allowing a discount of 15% on the marked price of an article, it is sold for Rs 680. The marked price of the article is Rs

asked Jan 17, 2022 in 8th-maths

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