What is the domain of f(x)=(1/2)^x
o a. x< 0
b. all real numbers
c. x> 0
o d. y> 0

B.  All real numbers

Step-by-step explanation:

Given:

The function is given as:

Domain is the input to a function represented by the values of 'x'. The domain defined a function's output which is also called as the range of the function.

The above function is an example of an exponential function. An exponential function is of the form:

Where, 'a' is any number greater than 0.

Here,

The domain of an exponential function is not restricted and includes all real values. But, the range of an exponential function is always a positive number.

Hence, the domain of the given exponential function is not restricted and include all real numbers. So, option B is correct.

A graph of an exponential function is attached to support the answer.

circle area = pi * radius^2

if diameter = 10 then radius = 5

circle area = pi * 5^2

circle area = pi * 25

circle area = 78.5398163397 square units

step-by-step explanation: