State whether the graph is or is not that of a function.
A. Yes
B. No
Answer: A
Mathematics
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Solve the problem.An experiment in a wind tunnel generates cyclic waves. The following data is collected for 60 seconds: 
Let V represent the wind speed (velocity) in feet per second and let t represent the time in seconds. Write a sine equation that describes the wave.
A. V = 42 sin (60t - 30) + 21
B. V = 58 sin(60t - 30) + 16
C. V = 21 sin 
+ 37
D. V = 58 sin 
+ 16
Mathematics
Find the area.
A. 84 m2 B. 850 m2 C. 42 m2 D. 425 m2
Mathematics
Graph the following function by transforming the given graph of y = f(x).Sketch the graph of y = -f(x).
A. 
B. 
C. 
D. 
Mathematics
Perform the indicated operations and express your answer in the form a + bi. 
A. ±9
B. -9i
C. 9i
D. i
Mathematics