The following graph shows a man's height H, in inches, at age t years.
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A: Explain in practical terms the meaning of 
.
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B: During what period is positive?
What will be an ideal response?
A: is the change in the man's height we expect over one year.
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B: positive up to age 20.
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Use an identity to find the value of the expression. Do not use a calculator.cos 46° sec 46°
A. cos2 46° B. 1 C. 46 D. 0
Solve the problem.Two recording devices are set 3600 feet apart, with the device at point A to the west of the device at point B. At a point on a line between the devices, 200 feet from point B, a small amount of explosive is detonated. The recording devices record the time the sound reaches each one. How far directly north of site B should a second explosion be done so that the measured time difference recorded by the devices is the same as that for the first detonation?
A. 1788.85 feet B. 7375.64 feet C. 1241.22 feet D. 425 feet
Given a = 8, b = 14, and c = 12, use the Law of Cosines to solve the triangle for the value of C. Round your answer to two decimal places. ?
A. 60.33° B. 86.42° C. 58.81° D. 34.77° E. 80.44°
Graph the inverse circular function.y = tan-1 x
A. 
B. 
C. 
D. 