Questions by yogita

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Verify the following: `(a + b) (a + b) (a + b) = a^3 + 3a^2b + 3ab^2 +

asked Jan 17, 2022 in 8th-maths

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Verify the following: `(7p – 13q)^2 + 364pq = (7p +

asked Jan 17, 2022 in 8th-maths

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`(-4)^4 xx(5/4)^4`

asked Jan 17, 2022 in 8th-maths

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If y be any non-zero integer, then `y^0` is equal

asked Jan 17, 2022 in 8th-maths

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Which of the following is equal to `(-3/4)^(-3)`

asked Jan 17, 2022 in 8th-maths

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`(–9)^3 -: (–9)^8` is equal

asked Jan 17, 2022 in 8th-maths

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asked Jan 17, 2022 in 8th-maths

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The expression for `8^(–2)` as a power with the base 2 is

asked Jan 17, 2022 in 8th-maths

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`[(2/13)^(-1) -: (2/13)^3]^3 xx (2/13)^(-13)` =

asked Jan 17, 2022 in 8th-maths

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To add the numbers given in standard form, we first convert them into numbers with __

asked Jan 17, 2022 in 8th-maths

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The standard form for 0.000000008 is

asked Jan 17, 2022 in 8th-maths

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The value of `[2^(–1) xx 3^(–1)]^(–1)` is

asked Jan 17, 2022 in 8th-maths

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`329.25 = 3 xx 10^2 + 2 xx 10^1 + 9 xx 10^0 + 2 xx 10^–1 + 5 xx

asked Jan 17, 2022 in 8th-maths

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Solve the following:(i) `100^(–10)` (ii) `2^(–2) xx 2^(–3)` (iii) `(1/2)^(-2) -:

asked Jan 17, 2022 in 8th-maths

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Express as a power of a rational number with negative exponent. (a) `(((-3)/2)^(-2))^(-3)` (b) `(2^5 -: 2^8) xx

asked Jan 17, 2022 in 8th-maths

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Simplify: -1. `(49 xx z^(-3))/(7^(-3) xx 10 xx z^(-5))`

asked Jan 17, 2022 in 8th-maths

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If `53^(x–1) -: 25 = 125`, find the value of

asked Jan 17, 2022 in 8th-maths

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The cells of a bacteria double in every 30 minutes. A scientist begins with a single cell. How many cells will be there after (a) 12 hours (b) 24

asked Jan 17, 2022 in 8th-maths

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The cells of a bacteria double itself every hour. How many cells will there be after 8 hours, if initially we start with 1 cell. Express the answer in

asked Jan 17, 2022 in 8th-maths

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An insect is on the 0 point of a number line, hopping towards 1. She covers half the distance from her current location to 1 with each hop. So, she will be at `1/2` after one hop, `3/4` after two hops, and so on. (a) Make a table showing the insect’s location for the first 10

asked Jan 17, 2022 in 8th-maths

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