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The reciprocal of `2/5xx((-4)/9)`

asked Jan 18, 2022 in 8th-maths by purvi (1.8k points)

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Shalini has to cut out circles of diameter `1 1/4cm` from an aluminium trip of dimensions `8 3/4cm` by `1 1/4cm`. How many full circles can Shalini cut? Also calculate the wastage of the aluminium

asked Jan 18, 2022 in 8th-maths by nishit (1.8k points)

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Read the frequency distribution table given below and answer the questions that follow: Class Interval Frequency 25-35 1 35-45 5 45-55 5 55-65 4 65-75 0 75-85 8 85-95 2 Total 25

asked Jan 18, 2022 in 8th-maths by Arun (1.7k points)

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Given below is a frequency distribution table. Read it and answer the questions that follow: Class Interval Frequency 10 – 20 5 20 – 30 10 30 – 40 4 40 – 50 15 50 – 60 12

asked Jan 18, 2022 in 8th-maths by vaibhav (1.7k points)

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Find the least number that must be added to 1500 so as to get a perfect square. Also find the square root of the perfect

asked Jan 18, 2022 in 8th-maths by vaibhav (1.7k points)

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Application of problem solving strategies • Find the smallest number by which 1620 must be divided to get a perfect

asked Jan 18, 2022 in 8th-maths by vaibhav (1.7k points)

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The cube root of a number x is denoted by

asked Jan 18, 2022 in 8th-maths by uday (1.6k points)

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Find the area of a square field if its perimeter is

asked Jan 18, 2022 in 8th-maths by nikhil (1.8k points)

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Difference of two perfect cubes is 189. If the cube root of the smaller of the two numbers is 3, find the cube root of the larger

asked Jan 18, 2022 in 8th-maths by krutika (1.7k points)

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In a parallelogram PQRS, the bisectors of `/_P` and `/_Q` meet at O. Find

asked Jan 18, 2022 in 8th-maths by krutika (1.7k points)

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PQRS is a trapezium in which PQ||SR and `/_P=130°, /_Q=110°`. Then `/_R` is equal

asked Jan 18, 2022 in 8th-maths by nishit (1.8k points)

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The sum of interior angles of a polygon of n sides is __________right

asked Jan 18, 2022 in 8th-maths by krutika (1.7k points)

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A diagonal of a quadrilateral is a line segment that joins two __________ vertices of the

asked Jan 18, 2022 in 8th-maths by yogita (1.8k points)

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The point of intersection of diagonals of a quadrilateral divides one diagonal in the ratio 1:2. Can it be a parallelogram? Why or why

asked Jan 18, 2022 in 8th-maths by nikhil (1.8k points)

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A diagonal of a parallelogram bisects an angle. Will it also bisect the other angle? Give

asked Jan 18, 2022 in 8th-maths by nikhil (1.8k points)

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Look at the shapes given below and state which of these are polyhedra using Euler’s formula.

asked Jan 18, 2022 in 8th-maths by purvi (1.8k points)

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Factorise the following. (i)4x^2 – 20x + 25 (ii) `(y^2/9-9)` (iii) `x^4 –

asked Jan 18, 2022 in 8th-maths by vaibhav (1.7k points)

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Factorise the following expressions. `y^2 + 8zx – 2xy –

asked Jan 18, 2022 in 8th-maths by Arun (1.7k points)

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Match the expressions of column I with that of column II: Column I Column II (1) `(21x + 13y)^2` (a) `441x^2 – 169y^2` (2) `(21x – 13y)^2` (b) `441x^2 + 169y^2 + 546xy` (3) `(21x – 13y) (21x + 13y)` (c) `441x^2 + 169y^2 – 546xy` (d) `441x^2 – 169y^2 + 546xy`

asked Jan 18, 2022 in 8th-maths by nikhil (1.8k points)

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Express the product of `3.2 xx 10^6` and `4.1 xx 10^(–1)` in the standard

asked Jan 18, 2022 in 8th-maths by uday (1.6k points)

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