A geometric sequence has an initial value of -2 and a common ratio of -3. What is the 20th term?

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!

$113.42

i hope that is right.

step-by-step explanation:

you can use a^2+ b^2=c^2