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Simplify and write the answer in the exponential form.

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

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Simplify and express the result in power notation with positive exponent.

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

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Evaluate

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

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Factorise the following using the identity `a^2 – b^2 = (a + b) (a – b)`. `x^2 –

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

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The following expressions are the areas of rectangles. Find the possible lengths and breadths of these rectangles. `x^2 – 6x +

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

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The following expressions are the areas of rectangles. Find the possible lengths and breadths of these rectangles. `x^2 + 19x –

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

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The radius of a circle is 7ab – 7bc – 14ac. Find the circumference of the circle.

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

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Verify the following: `(a + b + c) (a^2 + b^2 + c^2 – ab – bc – ca) = a^3 + b^3+ c^3 –

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

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The human body has about 100 billion cells. This number can be written in exponential form

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

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The multiplicative inverse of `10^(–100)`

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

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The value of `(–2)^(2xx3–1)`

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

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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 by Simran (1.8k points)

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`(-5/7)^(-5)` is equal

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

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For a non-zero integer x, `(x^4)^(–3)` is equal

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

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

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

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Predicting the ones digit, copy and complete this table and answer the questions that follow. (a) Describe patterns you see in the ones digits of the

asked Jan 17, 2022 in 8th-maths by Arun (1.7k 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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Find three repeater machines that will do the same work as a `(xx64)` machine. Draw them, or describe them using

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

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Ajay had a 1cm piece of gum. He put it through repeater machine given below and it came out `1/100,000 cm` long. What is the missing value?

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

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For each hook-up, determine whether there is a single repeater machine that will do the same work. If so, describe or draw it (a) (b) (c) (d)(e)

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

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