Question

1. Find the number of digits in the square root of 4489. (Without any calculat
2. Find product (4p2 +5p+7)x3p
3. Multiply the following: (a) 15xy,17yz (b) -5abcllab,13abc
4. If x Yaries inversely as y when x = 40, and y = 600, then find y, when​

Answer 1

Answer:

1. 2 digits as start from ones place and make pairs of 2 as many no. of pairs there would bi those many digits in the square root of that number

2. 12p³+15p²+21p

3.a.255xy²z

b. -65a³b³c²l²