Both circles have the same center the circumference of the inner circle is 31.4 millimeters What is the area of the shaded region
Use 3.14 for Write your answer as a whole number or a decimal rounded to the nearest
hundredth

the answer is:

the correct option:

b.

to solve the problem, we need to remember how to operate to simplify exponential expressions using the logarithms.

we are given the equation:

then, using placing logarith with base 7 on both sides of the equation, we have:

so, rounding the obtained result to two decimal places (nearest hundreth), we have:

hence, we have that the correct option:

b.

have a nice day!