Chapter 1.2B, Problem 18A

Assessment

Each of the following sequences is labeled either arithmetic or geometric. In each part, find the missing terms.

a. $\_\_,\underset{\_}{49},\_\_,\_\_,\underset{\_}{64}(\text{arithmetic})$

b. $\underset{\_}{1},\_\_,\_\_,\_\_,\underset{\_}{625}(\text{geometric})$

c. $\_\_,\underset{\_}{3^{10}},\_\_,\_\_,\underset{\_}{3^{19}}(\text{geometric})$

d. $\underset{\_}{a},\_\_,\_\_,\_\_,\underset{\_}{5a}(\text{arithmetic})$