Use the formula for the general term (the nth term) of a geometric sequence to find the indicated term of the sequence with the given first term, a1, and common ratio, r.Find a9 when a1 = 2, r = -2.
A. -1024
B. -14
C. 512
D. 516
Answer: C
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Solve the problem.The number of gallons of water in a swimming pool t minutes after the owner begins to drain it is 
At what rate is the water being drained at the end of 10 minutes?
A. 500 gal/min B. 1000 gal/min C. 5000 gal/min D. 2500 gal/min
Find the length of the missing side of the right triangle. Round to three decimal places, if necessary. The legs of the right triangle are represented by a and b, and the hypotenuse is represented by c.a = 9, b = 3
A. c = 4.899 B. c = 12 C. c = 27 D. c = 9.487
Solve the problem.On a certain map, 1 inch equals 40 miles. How many miles are in 2
inches?
A. 16 miles
B. 100 miles
C. 20
miles
D. 22 miles
Simplify. Assume that no radicands were formed by raising negative quantities to even powers.-7
+ 8
- 5
A. -287
B. -7
C. 287
D. -40