Which value of m makes the statement true? 92−2m ≤ 7+3m

A)17

B)12

C)9

D)7

If a = –4.2, what is the value of –a?

–4.2

–4

4

4.2

Proceed as in example 3 in section 6.1 to rewrite the given expression using a single power series whose general term involves xk. ∞ n(n − 1)cnxn − 2 n = 2 − 4 ∞ ncnxn n = 1 + ∞ cnxn n = 0

Two cyclists 84 miles apart start riding toward each other at the same. one cycles 2 times as fast as the other. if they meet 4 hours later, what is the speed (in mi/h) of the faster cyclist?

Over which interval is the graph of f(x) = x2 + 5x + 6 increasing?