The circle in the figure has a radius of r and center at C. The distance from A to B is x.
?
?
If 
and 
, find r.
?
Round the answer to the nearest whole number.
?
A. 17
B. 16
C. 14
D. 15
E. 21
Answer: A
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Use the half-angle formulas to simplify the given expression.
A. 
cos 2x
B. 3 cos 2x
C. 6 cos 2x
D. 3
cos 2x
Solve.At the end of a day, Shawn found that the total cash register receipts at the store where he works amounted to $9558.6. This included the 7.4% sales tax charged. Find the amount of the actual sales.
A. $10265.93 B. $8900 C. $9000 D. $8851.26
Solve the problem.The number G of gears a machine can make varies directly as the time T it operates. If it can make 7757 gears in 12 hours, how many gears can it make in 8 hours?
A. 5171 gears B. 7777 gears C. 646 gears D. 12 gears
Provide an appropriate response.True or False. If the graph of y = f(x) is symmetric with respect to the 
then the graph of y = -f(x) is not symmetric with respect to the y-axis.
A. False B. True