Questions by uday

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Using identities, evaluate.

asked Jan 18, 2022 in 8th-maths

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Draw the front view, side view and top view of the given objects. A nut -(d) A hexagonal block

asked Jan 18, 2022 in 8th-maths

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Find the area of a rhombus whose diagonals are of lengths 10 cm and 8.2

asked Jan 18, 2022 in 8th-maths

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The area of a trapezium is 34 `cm^2` and the length of one of the parallel sides is 10 cm and its height is 4 cm. Find the length of the other parallel

asked Jan 18, 2022 in 8th-maths

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The internal measures of a cuboidal room are `12 m xx 8 m xx 4 m`. Find the total cost of whitewashing all four walls of a room, if the cost of white washing is Rs 5 per `m^2`. What will be the cost of white washing if the ceiling of the room is also whitewashed.

asked Jan 18, 2022 in 8th-maths

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A suitcase with measures `80 cm xx 48 cm xx 24 cm` is to be covered with a tarpaulin cloth. How many metres of tarpaulin of width 96 cm is required to cover 100 such

asked Jan 18, 2022 in 8th-maths

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Rukhsar painted the outside of the cabinet of measure `1 m xx 2 m xx 1.5 m`. How much surface area did she cover if she painted all except the bottom of the

asked Jan 18, 2022 in 8th-maths

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Express `4^(– 3)` as a power with the base

asked Jan 18, 2022 in 8th-maths

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asked Jan 18, 2022 in 8th-maths

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asked Jan 18, 2022 in 8th-maths

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Express the following numbers in usual form. `3.61492 xx

asked Jan 18, 2022 in 8th-maths

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Express the number appearing in the following statements in standard form. 1 micron is equal to `1/(1000000)`

asked Jan 18, 2022 in 8th-maths

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Express the number appearing in the following statements in standard form. Charge of an electron is 0.000,000,000,000,000,000,16

asked Jan 18, 2022 in 8th-maths

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Express the number appearing in the following statements in standard form. Thickness of a thick paper is 0.07

asked Jan 18, 2022 in 8th-maths

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In Question 2 above, if 1 part of a red pigment requires 75 mL of base, how much red pigment should we mix with 1800 mL of

asked Jan 18, 2022 in 8th-maths

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Factorise the following using the identity `a^2 – b^2 = (a + b) (a – b)`. `y^4 –

asked Jan 17, 2022 in 8th-maths

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Factorise the following using the identity `a^2 – b^2 = (a + b) (a – b)`. `y^4 –

asked Jan 17, 2022 in 8th-maths

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Factorise the expressions and divide them as directed: `(3x^2 – 48) -: (x –

asked Jan 17, 2022 in 8th-maths

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The area of a rectangle is `x2 + 7x + 12`. If its breadth is (x + 3), then find its

asked Jan 17, 2022 in 8th-maths

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The area of a circle is given by the expression `πx^2 + 6πx + 9π`. Find the radius of the

asked Jan 17, 2022 in 8th-maths

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