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The frequency of more than 8 marks is 21. Marks (obtained out of 10) 4 5 7 8 9 10 Frequency 5 10 8 6 12 9

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

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There is no square number between 50 and

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

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For constructing a unique quadrilateral at least __________ measurements are

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

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In a quadrilateral PQRS, `/_P = 50°, /_Q = 50°, /_R = 60°`. Find `/_S`. Is this quadrilateral convex or

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

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A polyhedron has 60 edges and 40 vertices. Find the number of its

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

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Factorise the following, using the identity `a^2 + 2ab + b^2 = (a + b)^2` `x^2^ + 6x +

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

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Factorise the following, using the identity `a^2 + 2ab + b^2 = (a + b)^2` `x^2 + 12x +

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

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Very small numbers can be expressed in standard form by using _________

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

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`(2/3)^(-2) xx (2/3)^(-5) =

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

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The distance between the Sun and the Earth is `1.496 xx 10^8` km and distance between the Earth and the Moon is `3.84 xx 10^8` m. During solar eclipse the Moon comes in between the Earth and the Sun. What is distance between the Moon and the Sun at that particular

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

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Perform the following divisions: `(3pqr – 6p^2q^2r^2) -:

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

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In a camp, there is enough flour for 300 persons for 42 days. How long will the flour last if 20 more persons join the

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

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Plot the given points on a graph

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

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Write the additive inverse of each of the following.

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

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Numbers 1 to 10 are written on ten separate slips (one number on one slip), kept in a box and mixed well. One slip is chosen from the box without looking into it. What is the probability of .

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

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How many numbers lie between squares of the following numbers? 12 and 13

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

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How many numbers lie between squares of the following numbers? 99 and

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

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Simplify. `(x + y)(2x + y) + (x + 2y)(x – y)`

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

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Using Identity (II), find `(4p –

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

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Simplify. `(ab + bc)^2 – 2ab^2c`

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

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