Recent questions in 8th-maths

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The distance between school and house of a girl is given by 5 cm in a picture, using the scale 1 cm : 5 km. Find the actual distance between the two

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

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Use a ruler to measure the distance in cm between the places joined by dotted lines. If the map has been drawn using the scale 1 cm :10 km, find the actual distances between (1) School and Library (2) College and Complex (3) House and School

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

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The actual length of a painting was 2 m. What is its length in the photograph if the scale used is 1 mm : 20 cm.

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

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Find the scale. (a) Actual size 12 m Drawing size 3 cm (b) Actual size 45 feet Drawing size 5

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

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In a town, an ice cream parlour has displayed an ice cream sculpture of height 360 cm. The parlour claims that these ice creams and the sculpture are in the scale 1:30. What is the height of the ice creams

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

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Which is the like term as

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

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Which of the following is an

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

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The irreducible factorisation of 3a3 + 6a

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

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a ( b + c) = ab + ac

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

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The representation of an expression as the product of its factors is called

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

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(x + a) (x + b) = x2 + (a + b)x +

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

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An identity is true for all values of its

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

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Common factor of `x^2y` and `– xy^2` is

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

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`(3x + 3x^2) -: 3x =

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

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Simplify (i) `– pqr (p^2 + q^2 + r^2)` (ii) (px + qy) (ax –

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

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Find the expansion of the following using suitable identity.(i) (3x + 7y) (3x – 7y) (ii)

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

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Factorise the following. (i) `21x^2y^3 + 27x^3y^2` (ii) `a^3 – 4a^2 + 12 –

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

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Evaluate using suitable identities.(i) `(48)^2` (ii) `181^2 – 19^2` (iii) `497 xx 505` (iv) `2.07 xx

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

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Verify that`(3x + 5y)^2 – 30xy = 9x^2 +

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

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