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`(1/10)^0` is equal

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

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For a non-zero rational number z, `(z^-2)^3` is equal

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

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Which of the following is not the reciprocal of `(2/3)^4`

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

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The value for `(–7)^6 -: 7^6` is

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

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Find the product of the cube of (–2) and the square of

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

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Find x so that `(2/9)^3 xx (2/9)^(-6) =

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

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Two machines can be hooked together. When something is sent through this hook up, the output from the first machine becomes the input for the second. (a) Which two machines hooked together do the same work a `( xx 10^2)` machine does? Is there more than one arrangement of two machines that will work? (b) Which stretching machine does the same work as two `(xx 2)` machines hooked together?

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

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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 by krutika (1.7k points)

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What will the following machine do to a 2 cm long piece of chalk?

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

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Neha needs to stretch some sticks to `25^2` times their original lengths, but her `(xx2^5)` machine is broken. Find a hook-up of two repeater machines that will do the same work as a `(xx25^2)` machine. To get started, think about the hookup you could use to replace the `(xx2^5)` machine.

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

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Vishakha offers a discount of 20% on all the items at her shop and still makes a profit of 12%. What is the cost price of an article marked at Rs

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

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Find the compound interest on Rs 48,000 for one year at 8% per annum when compounded half

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

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The compound interest on Rs 50,000 at 4% per annum for 2 years compounded annually

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

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Ashima took a loan of Rs 1,00,000 at 12% p.a. compounded half yearly. She paid Rs 1,12,360. If (1.06)2 is equal to 1.1236, then the period for which she took the loan

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

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The cost of a book marked at Rs 190 after paying a sales tax of 2% is Rs

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

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Find the S.P. if (a) M.P. = Rs 5450 and discount = 5% (b) M.P. = Rs 1300 and discount =

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

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Find the M.P. if (a) S.P. = Rs 495 and discount = 1% (b) S.P. = Rs 9,250 and discount = `7

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

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The marked price of an article is Rs 500. The shopkeeper gives a discount of 5% and still makes a profit of 25%. Find the cost price of the

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

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In the year 2001, the number of malaria patients admitted in the hospitals of a state was 4,375. Every year this number decreases by 8%. Find the number of patients in

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

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In Delhi University, in the year 2009 – 10, 49,000 seats were available for admission to various courses at graduation level. Out of these 28,200 seats were for the students of General Category while 7,400 seats were reserved for SC and 3,700 seats for ST. Find the per centage of seats available for

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

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