Simplify. Assume that any variables are positive.
A. 
B. 
C. 
D. 
Answer: D
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Solve.In an electric circuit, the electromotive force is defined as 
where t is time in seconds. Solve the equation for t.
A. t = 2? cos V
B. t = 
Arccos V
C. t = 
cos V
D. t = 2? Arccos V
Find the exact value under the given conditions.cos ? = 
, 0 < ? < 
; sin ? = - 
, - 
< ? < 0Find tan(? + ?).
A. 
B. 
C. 
D. 
Solve the problem.Determine a polynomial that represents the area of the figure.
A. 9x3 + 13x2 + 59x - 28 B. 9x3 - 28 C. 9x3 + 5x2 + 59x - 28 D. 9x3 - 5x2 - 59x - 28
Solve the problem.If a satellite reaches a speed of 7.91 kilometers per second, it will attain a circular orbit. If a satellite is placed in an orbit of 370 kilometers above the Earth, what is the equation of the path of the satellite if the origin is placed at the center of the Earth (the diameter of the Earth is approximately 12,740 kilometers)?
A. x2 + y2 = 136,900 B. x2 + y2 = 45,427,600 C. x2 + y2 = 171,872,100 D. x2 + y2 = 40,576,900