Find the period of the function.y = 0.5 sin 
A. 0.5
B. 12?
C. 24?
D. 
Answer: C
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Use similar triangles and the fact that corresponding sides are proportional to find the length of the segment marked with an x.
A. 1 in. B. 1.2 in. C. 7.2 in. D. 1.24 in.
Solve the problem.The average value of a certain type of automobile was $15,900 in 1991 and depreciated to $6900 in 1994. Let y be the average value of the automobile in the year x, where x = 0 represents 1991. Write a linear equation that models the value of the automobile (y) in terms of the year x.
A. y = -3000x + 15,900
B. y = - 
x - 6900
C. y = -3000x + 6900
D. y = -3000x - 2100
A saleswoman wants to visit eastern cities, New York City, Boston, Cleveland, and Washington, D.C. Driving distances are as shown in the figure below. What is the shortest trip starting in New York that visits each of these cities, if 
Find a solution using the sorted-edge method.
?
?
A. 1,646 mi B. 1,645 mi C. 1,151 mi D. 1,643 mi E. 1,644 mi
Perform the indicated operations and simplify the result. Leave the answer in factored form.
A. 
B. 
C. 
D. 