Question

Consider the expression 0.8^x-3 . Which of the following is an equivalent expression? A- 0.8^x/3 B-0.8^3/x C-0.8^x/0.8^3 D-0.8^3/0.8^x

Answer 1

C. 0.8^x × 0.8^-3
0.8^0 / 0.8^3

Answer 2

The correct option is C.

Explanation:

The given expression is

`0.8^(x-3)`

According to the property of exponent.

`x^(a-b)=(x^a)/(x^b)`

Using this property we get,

`0.8^(x-3)=(0.8^x)/(0.8^3)`

Therefore the correct option is C.