Hot questions

0 votes

0 answers

There are 100 students in a hostel. Food provision for them is for 20 days. How long will these provisions last, if 25 more students join the

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

0 votes

0 answers

Take suitable number of cards given in the adjoining diagram [G`(x xx x)` representing `x^2`, R `(x xx 1)` representing x and Y `(1 xx 1)` representing 1] to factorise the following expressions, by arranging the cards in the form of rectangles: (i) `2x^2 + 6x + 4` (ii) `x^2 + 4x + 4`. Factorise `2x^2 + 6x + 4` by using the figure.

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

0 votes

0 answers

Match the expressions of column I with that of column II: Column I Column II (1) `(21x + 13y)^2` (a) `441x^2 – 169y^2` (2) `(21x – 13y)^2` (b) `441x^2 + 169y^2 + 546xy` (3) `(21x – 13y) (21x + 13y)` (c) `441x^2 + 169y^2 – 546xy` (d) `441x^2 – 169y^2 + 546xy`

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

0 votes

0 answers

`329.25 = 3 xx 10^2 + 2 xx 10^1 + 9 xx 10^0 + 2 xx 10^–1 + 5 xx

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

0 votes

0 answers

A square sheet of paper is converted into a cylinder by rolling it along its side. What is the ratio of the base radius to the side of the

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

0 votes

0 answers

Draw a prism with its base as regular hexagon with one of its face facing you. Now draw the top view, front view and side view of this

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

0 votes

0 answers

Look at the shapes given below and state which of these are polyhedra using Euler’s formula.

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

0 votes

0 answers

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

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

0 votes

0 answers

The value of `(2x^2 + 4) -: 2`

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

0 votes

0 answers

The value of `(3x^3 +9x^2 + 27x) -: 3x`

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

0 votes

0 answers

The value of `(a + b)^2 – (a – b)^2`

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

0 votes

0 answers

The difference of the squares of two consecutive numbers is their

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

0 votes

0 answers

Subtract : `3t^4 – 4t^3 + 2t^2 – 6t + 6` from `– 4t^4 + 8t^3 – 4t^2 – 2t +

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

0 votes

0 answers

Multiply the following: `a, a^5,

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

0 votes

0 answers

Multiply the following: `3/2p^2+2/3q^2`,

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

0 votes

0 answers

Simplyfy

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

0 votes

0 answers

Using suitable identities, evaluate the following. `(729)^2 –

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

0 votes

0 answers

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

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

0 votes

0 answers

The radius of a circle is 7ab – 7bc – 14ac. Find the circumference of the circle.

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

0 votes

0 answers

If a + b = 25 and `a^2 + b^2 = 225`, then find

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

Hot questions

Categories