Perform the indicated operation.
+ 
A. 
B. 
C. 
D. 
Answer: C
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Find a formula for the nth term of the sequence.1, - 
, 
, - 
, 
(reciprocals of squares with alternating signs)
A. an = 
B. an = 
C. an = 
D. an = 
Use properties of logarithms to expand the logarithmic expression as much as possible. Where possible, evaluate logarithmic expressions without using a calculator.log5
A. 
log53 + 
log5x
B. log53 + 
log5x
C. 
log53x
D. log5
+ log5
Solve triangle ABC. If necessary, round the answer to the nearest tenth.B = 39.1°, C = 112.5°, b = 31.35 meters
A. A = 28.4°, a = 25.6 m, c = 47.9 m B. A = 26.4°, a = 47.9 m, c = 25.6 m C. A = 26.4°, a = 45.9 m, c = 23.6 m D. A = 28.4°, a = 23.6 m, c = 45.9 m
Interpret the meaning of the slope and the y-intercept of the equation in terms of the conditions stated in the problem.The cost, in dollars, of a one-day car rental is given by 
where x is the number of miles driven.
A. $30 is the cost per day to rent the car and $0.16 is the cost per mile. B. $0.16 is the cost per day to rent the car and $30 is the cost per mile. C. $16 is the cost per day to rent the car and $0.30 is the cost per mile. D. $30 is the cost per day to rent the car and $16 is the extra cost for unlimited miles.