Questions by yogita

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Find the product. `(p^2 – q^2) (2p +

asked Jan 17, 2022 in 8th-maths

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Simplify. `(1.5x – 4y)(1.5x + 4y + 3) – 4.5x +

asked Jan 17, 2022 in 8th-maths

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Simplify. `(a + b + c)(a + b –

asked Jan 17, 2022 in 8th-maths

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Use the Identity `(x + a) (x + b) = x^2 + (a + b) x + ab` to find the following `95 xx

asked Jan 17, 2022 in 8th-maths

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Use the identity `(x + a) (x + b) = x^2 + (a + b) x + ab` to find the following products. (4x + 5) (4x +

asked Jan 17, 2022 in 8th-maths

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Use the identity `(x + a) (x + b) = x^2 + (a + b) x + ab` to find the following products. (xyz – 4) (xyz –

asked Jan 17, 2022 in 8th-maths

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Simplify. `(4m + 5n)^2 + (5m +

asked Jan 17, 2022 in 8th-maths

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Using identities, evaluate.

asked Jan 17, 2022 in 8th-maths

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Using identities, evaluate. `78 xx 82`

asked Jan 17, 2022 in 8th-maths

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Using identities, evaluate.

asked Jan 17, 2022 in 8th-maths

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Using `a^2 – b^2 = (a + b) (a – b)`, find `12.1^2 –

asked Jan 17, 2022 in 8th-maths

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Can a polyhedron have 10 faces, 20 edges and 15

asked Jan 17, 2022 in 8th-maths

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Length of the fence of a trapezium shaped field ABCD is 120 m. If BC = 48 m, CD = 17 m and AD = 40 m, find the area of this field. Side AB is perpendicular to the parallel sides AD and

asked Jan 17, 2022 in 8th-maths

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Find the area of a rhombus whose side is 6 cm and whose altitude is 4 cm. If one of its diagonals is 8 cm long, find the length of the other

asked Jan 17, 2022 in 8th-maths

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A cuboid is of dimensions 60 cm × 54 cm × 30 cm. How many small cubes with side 6 cm can be placed in the given

asked Jan 17, 2022 in 8th-maths

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A milk tank is in the form of cylinder whose radius is 1.5 m and length is 7 m. Find the quantity of milk in litres that can be stored in the

asked Jan 17, 2022 in 8th-maths

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Water is pouring into a cubiodal reservoir at the rate of 60 litres per minute. If the volume of reservoir is 108 m3 , find the number of hours it will take to fill the

asked Jan 17, 2022 in 8th-maths

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Simplify and write the answer in the exponential form.

asked Jan 17, 2022 in 8th-maths

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Express the following numbers in usual form. `3.61492 xx

asked Jan 17, 2022 in 8th-maths

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Express the number appearing in the following statements in standard form. Size of a plant cell is 0.00001275

asked Jan 17, 2022 in 8th-maths

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