A power station is on one side of a river that is 0.5 mile wide, and a factory is 6 miles downstream on the other side of the river. It costs $14 per foot to run overland power lines and $20 per foot to run underwater power lines. Estimate the value of x that minimizes the cost. The value of 
is the length of the overland piece of power line.
?
A. 2.56
B. 5.51
C. 3
D. 5.49
E. 0.87
Answer: B
Mathematics
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Solve.The speed of a ball dropped from a tower is given by the linear function f(t) = 32t where f(t) is in feet per second and t is the number of seconds since the ball was dropped. Find the speed of the ball after 6 seconds.
A. 192 feet per second B. 6 feet per second C. 182 feet per second D. 32 feet per second
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Is the following statement true or false?-6.2 < 6.5
A. True B. False
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Solve. Write the fraction in simplest form.Linda walked 
mi to the park and then another 
mi to the cafe. How far did she walk in total?
A. 
mi
B. 
mi
C. 
mi
D. 
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Find the angle, in radians, in the figure below if S = 15 and r = 4.
A. 
B. ?
C. ?
D. ?
E. ?
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