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Find the value `[4^(–1) +3^(–1) +

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

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The usual form for `2.3 xx 10^(-10)` is

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

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The value of `[1^(–2) + 2^(–2) + 3^(–2)] xx 6^2` is ________

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

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Divide 293 by 10,00,000 and express the result in standard

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Find the value of `x^(–3)` if `x = (100)^(1–4) -:

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

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By what number should `(–15)^(–1)` be divided so that quotient may be equal to `(–15)^(–1)`

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

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An electron’s mass is approximately `9.1093826 xx 10^(–31)` kilograms. What is this mass in

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

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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 by nishit (1.8k 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 purvi (1.8k points)

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Find x -1. (1) `-(1/7)^(-5) -: -(1/7)^(-7) = (-7)^x` (2) `(2/5)^(2x+6) xx (2/5)^3 =

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

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Simplify:

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

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Simplify: `(4/13)^4 xx (13/7)^2 xx

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

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Simplify: `((9) xx 27 xx t^4)/((3)^(-2) xx (3)^4 xx

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

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A shirt with marked price Rs 800 was sold at Rs 680. The rate of discount allowed on the shirt

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

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Amna purchased a toy for Rs 660 including sales tax. If the rate of sales tax is 10%, then the selling price of the toy is

asked Jan 17, 2022 in 8th-maths by nikhil (1.8k 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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A bought a tape recorder for Rs 8,000 and sold it to B. B in turn sold it to C, each earning a profit of 20%. Which of the following is

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

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A sum is taken for two years at 16% p.a. If interest is compounded after every three months, the number of times for which interest is charged in 2 years

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

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15% increase in price of an article, which is Rs 1,620, is the increase of Rs

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

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