Questions by Simran

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Simplify. `(a + b) (c – d) + (a – b) (c + d) + 2 (ac +

asked Jan 18, 2022 in 8th-maths

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

asked Jan 18, 2022 in 8th-maths

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Simplify. `(a + b + c)(a + b –

asked Jan 18, 2022 in 8th-maths

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Using Identity (III), find `194 xx

asked Jan 18, 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 18, 2022 in 8th-maths

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Use a suitable identity to get each of the following products. (x + 3) (x + 3)

asked Jan 18, 2022 in 8th-maths

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Use a suitable identity to get each of the following products. (1.1m – 0.4) (1.1m +

asked Jan 18, 2022 in 8th-maths

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Simplify. `(m^2 – n^2m)^2 +

asked Jan 18, 2022 in 8th-maths

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Show that. `(3x + 7)^2 – 84x = (3x –

asked Jan 18, 2022 in 8th-maths

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Using identities, evaluate.

asked Jan 18, 2022 in 8th-maths

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Using `(x + a) (x + b) = x^2 + (a + b) x + ab`, find `9.7 xx

asked Jan 18, 2022 in 8th-maths

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Draw a map giving instructions to your friend so that she reaches your house without any

asked Jan 18, 2022 in 8th-maths

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The shape of a garden is rectangular in the middle and semi circular at the ends as shown in the diagram. Find the area and the perimeter of this garden [Length of rectangle is 20 – (3.5 + 3.5) metres].

asked Jan 18, 2022 in 8th-maths

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A closed cylindrical tank of radius 7 m and height 3 m is made from a sheet of metal. How much sheet of metal is

asked Jan 18, 2022 in 8th-maths

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A godown is in the form of a cuboid of measures `60 m xx 40 m xx 30 m`. How many cuboidal boxes can be stored in it if the volume of one box is 0.8 `m^3`

asked Jan 18, 2022 in 8th-maths

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Find the height of a cuboid whose base area is 180 c`m^2` and volume is 900 cm3

asked Jan 18, 2022 in 8th-maths

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Find the height of the cylinder whose volume is 1.54 m3 and diameter of the base is 140 cm

asked Jan 18, 2022 in 8th-maths

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Simplify and write the answer in the exponential form. `(25 ÷ 28)^5 xx 2^(–

asked Jan 18, 2022 in 8th-maths

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Find the value of

asked Jan 18, 2022 in 8th-maths

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Simplify and express the result in power notation with positive exponent.

asked Jan 18, 2022 in 8th-maths

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