Question

Answer the following questions 5 x 2 = 10
1. The mean marks (out of 100) of a group of students is 60 . If t heir marks are 85, 7 5, x, 36
and 64, then find the value of x.
2. Find the root of the equation: ~x = f.
3. Find the area of the circle, whose diameter is 49 m.
4 . Simplify and express in exponential form :
(i) P 3 x P2. (ii) 56 x 55
. (iii) 84
+ 82
. ( iv) b6 + b4.
5 Wh. h. 2 s . 1c 1s greater: 3, 2.

Answer 1

Answer:

4 . Simplify and express in exponential form :

1. ${p}^{3} \times {p}^{2 } = {p}^{5}$