Questions by nikhil

0 votes

0 answers

Multiply `(a^2 + 2b^2)` and (5a –

asked Jan 17, 2022 in 8th-maths

0 votes

0 answers

Find the product. (x + 7y) (7x –

asked Jan 17, 2022 in 8th-maths

0 votes

0 answers

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

0 votes

0 answers

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

0 votes

0 answers

Find the following squares by using the identities.

asked Jan 17, 2022 in 8th-maths

0 votes

0 answers

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

asked Jan 17, 2022 in 8th-maths

0 votes

0 answers

Simplify. `(ab + bc)^2 – 2ab^2c`

asked Jan 17, 2022 in 8th-maths

0 votes

0 answers

Show that. `(4pq + 3q)^2 – (4pq – 3q)^2 =

asked Jan 17, 2022 in 8th-maths

0 votes

0 answers

Using identities, evaluate.

asked Jan 17, 2022 in 8th-maths

0 votes

0 answers

Using identities, evaluate. `1.05 xx

asked Jan 17, 2022 in 8th-maths

0 votes

0 answers

There is a regular hexagon MNOPQR of side 5 cm .Aman and Ridhima divided it in two different

asked Jan 17, 2022 in 8th-maths

0 votes

0 answers

There is a pentagonal shaped park as shown in the figure. For finding its area Jyoti and Kavita divided it in two different ways. Find the area of this park using both ways. Can you suggest some other wayof finding its

asked Jan 17, 2022 in 8th-maths

0 votes

0 answers

Diameter of cylinder A is 7 cm, and the height is 14 cm. Diameter of cylinder B is 14 cm and height is 7 cm. Without doing any calculations can you suggest whose volume is greater? Verify it by finding thevolume of both the cylinders. Check whether the cylinder with greater volume also has greater surface

asked Jan 17, 2022 in 8th-maths

0 votes

0 answers

Find the value of. `(3^(– 1) + 4^(– 1) + 5^(–

asked Jan 17, 2022 in 8th-maths

0 votes

0 answers

Following are the car parking charges near a railway station upto 4 hours Rs 60 8 hours Rs 100 12 hours Rs 140 24 hours Rs 180Check if the parking charges are in direct proportion to the parking

asked Jan 17, 2022 in 8th-maths

0 votes

0 answers

A mixture of paint is prepared by mixing 1 part of red pigments with 8 parts of base. In the following table, find the parts of base that need to be added.

asked Jan 17, 2022 in 8th-maths

0 votes

0 answers

In a model of a ship, the mast is 9 cm high, while the mast of the actual ship is 12 m high. If the length of the ship is 28 m, how long is the model

asked Jan 17, 2022 in 8th-maths

+1 vote

0 answers

Suppose 2 kg of sugar contains `9 xx 10^6` crystals. How many sugar crystals are there in 1.2 kg of

asked Jan 17, 2022 in 8th-maths

0 votes

0 answers

A farmer has enough food to feed 20 animals in his cattle for 6 days. How long would the food last if there were 10 more animals in his

asked Jan 17, 2022 in 8th-maths

0 votes

0 answers

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

asked Jan 17, 2022 in 8th-maths

Page:

« prev
1
...
29
30
31
32
33
34
35
...
45
next »