Use the formula for Sn to find the sum for the geometric sequence.3, -9, 27, -81, 243
A. 183
B. 363
C. -363
D. -183
Answer: A
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Solve the problem.Suppose you are playing a game of chance. If you bet $6 on a certain event, you will collect $174 (including your $6 bet) if you win. Find the odds used for determining the payoff.
A. 29 : 1 B. 28 : 1 C. 1 : 28 D. 174 : 180
Solve the problem.A ray of light is moving from air into glass. If its angle of incidence is 10°, find its angle of refraction. The indices of refraction of air and glass are 1.000293 and 1.571, respectively.
A. 15.82° B. 6.35° C. 13.92° D. 6.98°
Make the following length or weight conversion between the U.S. and the metric system.28 feet to meters (Round to the nearest tenth.)
A. 84 m B. 9.3 m C. 31.1 m D. 8.5 m
Use a proportion to solve the problem.The ratio of the distances a 7-iron and a 5-iron will drive a golf ball is 5 to 6. If a golfer averages 127 yards with a 7-iron, how far should he average with a 5-iron?
A. 152.4 yd B. 106 yd C. 116 yd D. 138 yd