Powers & Exponents

Exponents and Powers Worksheet-7

1. If x^y = y^x, then  is equal to

(a)                 (b)             (c)                (d)

Exponents and Powers Worksheet-8

1. If  then a = ________.

(a) –1                  (b) 0                    (c) 1                     (d) 2

2. The value of is

(a) 2                    (b) 0                    (c) 1                     (d) –1

Exponents and Powers Worksheet-9

1. The value of (–8) × (–8) × (–8) × (–8) × (–8) × (–8) × (–8) × (–8) × (–8) × (–8) is

(a) –2(8)⁵          (b) –(2)¹⁶           (c) –(4)⁸             (d) all of these

2. Express 0.0084 in scientific notation.

(a) 84 × 10                                     (b) 8.4 × 10^–3

(c) 0.84 × 10^–2                              (d) 8.4 × 10^–5