91Ó°ÊÓ

Solve triangle \(A B C\) if \(a=17, b=28,\) and \(c=15\) Round angle measures to the nearest degree. (Section 6.2, Example 2) (GRAPH CANT COPY)

You buy a new car for \(\$ 24,000 .\) At the end of \(n\) years, the value of your car is given by the sequence $$a_{n}=24,000\left(\frac{3}{4}\right)^{n}, \quad n=1,2,3, \ldots$$ Find \(a_{5}\) and write a sentence explaining what this value represents. Describe the \(n\) th term of the sequence in terms of the value of your car at the end of each year.

What is the common ratio in a geometric sequence?

What is the difference between a geometric sequence and an infinite geometric series?

Determine whether each statement makes sense or does not make sense, and explain your reasoning. I modeled California's population growth with a geometric sequence, so my model is an exponential function whose domain is the set of natural numbers.

Find the dimensions of a rectangle whose perimeter is 22 feet and whose area is 24 square feet. (Section 7.4, Example 5)