Exponents

The exponential form of 10000 is

• (a) 10^3

• (b) 10^4

• (c) 10^5

• (d) none of these

The value of (- 2)^3 is

• (a) 8

• (b) -8

• (c) 16

• (d) -16

What is the exponent in 8^2?

• (a) 8

• (b) 2

• (c) 16

• (d) 6

(-1)raised to the power of odd number =

• (a) -1

• (b) 1

• (c) 0

• (d) none of these

If 2^3 × 2^4 = 2^?, then ? =

• (a) 3

• (b) 4

• (c) 1

• (d) 7

Which of the following is true?

• (a) 2^ 0 = (100)^0

• (b) 10^2 × 10^8 = 10^16

• (c) 2^2 × 3^3 = 6^5

• (d) 2^3 > 3^2

• 1

• 2

• 3

• 4

If (–3)^ (m+1) × (–3)^5 = (–3)^7, then the value of m is:

• (a). 5

• (b). 7

• (c) 1

• (d). 3

If (25)^x = (125)^y then x : y equals

• 3:2

• 2:3

• 4:5

• 3:5

which is larger?

2X 10 ^8 or 4 X 10 ^5

• 2X 10 ^8

• 4 X 10 ^5