Questions by Simran

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The following expressions are the areas of rectangles. Find the possible lengths and breadths of these rectangles. `x^2 + 9x +

asked Jan 17, 2022 in 8th-maths

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The following expressions are the areas of rectangles. Find the possible lengths and breadths of these rectangles. `76x^3yz^3 -:

asked Jan 17, 2022 in 8th-maths

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Verify the following: `(m + n) (m^2 – mn + n^2) = m^3 +

asked Jan 17, 2022 in 8th-maths

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Find the value of a, if `pq^2a = (4pq + 3q)^2 – (4pq –

asked Jan 17, 2022 in 8th-maths

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If x be any non-zero integer and m, n be negative integers, then `xm xx xn` is equal

asked Jan 17, 2022 in 8th-maths

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If x be any integer different from zero and m, n be any integers, then `(x^m)^n` is equal

asked Jan 17, 2022 in 8th-maths

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`(1/10)^0` is equal

asked Jan 17, 2022 in 8th-maths

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`a^3 xx a^(–10)` =

asked Jan 17, 2022 in 8th-maths

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On dividing `8^5` by _________ we get

asked Jan 17, 2022 in 8th-maths

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asked Jan 17, 2022 in 8th-maths

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The expontential form for `(–2)^4 xx (5/2)^4` is

asked Jan 17, 2022 in 8th-maths

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

asked Jan 17, 2022 in 8th-maths

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Write 39,00,00,000 in the standard

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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At the end of the 20th century, the world population was approximately `6.1 xx 10^9` people. Express this population in usual form. How would you say this number in

asked Jan 17, 2022 in 8th-maths

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For the following repeater machines, how many times the base machine is applied and how much the total stretch is?

asked Jan 17, 2022 in 8th-maths

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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

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

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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Mass of Mars is `6.42 xx 10^29` kg and mass of the Sun is `1.99 xx 10^30` kg. What is the total

asked Jan 17, 2022 in 8th-maths

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