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The height of a triangle is `x^4 + y^4` and its base is 14xy. Find the area of the

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

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Verify the following: `(ab + bc) (ab – bc) + (bc + ca) (bc – ca) + (ca + ab) (ca – ab) =

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

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If `x-1/x=7` then find the value of

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

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Multiplicative inverse of `2^7`

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

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The standard form of `(1/100000000)` is

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

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The usual form of `2.39461 xx 10^6` is

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

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The value of `3 xx 10^(-7)` is equal to

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

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The expression for `3^5` with a negative exponent is

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

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The multiplicative inverse of `(3/2)^2` is not equal to

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

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The usual form for `2 xx 10^(–2)` is not equal to

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

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`(125 xx x^(-3))/(5^(-3) xx 25 xx

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

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Fill in the blanks

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

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Arnav buys a book costing Rs 600. If the rate of sales tax is 7%, then the total amount payable by him is Rs

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

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Harshna gave her car for service at service station on 27-05-2009 and was charged as follows: (a) 3.10 litres engine oil @ Rs 178.75 per litre and VAT @ 20%. (b) Rs 1,105.12 for all other services and VAT @ 12.5%. (c) Rs 2,095.80 as labour charges and service tax @10%. (d) 3% cess on service Tax. Find the bill

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

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Music CD originally priced at Rs 120 is on sale for 25% off. What is the S.P.? Sonia and Rahul have different ways of calculating the sale price for the items they bought. As you work on the next problem, try both of these methods to see which you

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

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Below is the Report Card of Vidit Atrey. Vidit’s teacher left the last column blank. Vidit is not able to make out, in which subject he performed better and in which he needs improvement. Complete the table to help Vidit know his comparative performance.

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

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A cube of side 5 cm is cut into as many 1 cm cubes as possible. What is the ratio of the surface area of the original cube to that of the sum of the surface areas of the smaller

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

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Four times the area of the curved surface of a cylinder is equal to 6 times the sum of the areas of its bases. If its height is 12 cm, find its curved surface

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

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A double bar graph is useful for the __________ of two sets of data.- Data represented in a circular form is called a _________ chart.- The graph of a linear equation is always a __________ line.- The cartesian system used two axes which are __________ to each

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

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The following chart gives the growth in height in terms of percentage of full height of boys and girls with their respective ages. Age (in years) 8 9 10 11 12 13 14 15 16 17 18 Boys 72% 75% 78% 81% 84% 88% 92% 95% 98% 99% 100% Girls 77% 81% 84% 88% 91% 95% 98% 99% 99.5% 100% 100% Draw the line graph of above data on the same sheet and answer the following questions.

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

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