Solve the problem.A rotating beacon is located a distance d from a long wall. The distance d is given byd = 2 tan 2?t,where t is the time measured in seconds since the beacon started rotating. Solve the equation for t.
A. t = 
tan 
B. t = 2? tan 
C. t = 2? arctan 
D. t = 
arctan 
Answer: D
Mathematics
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Find dy for the given values of x and ?x.y = 2x5 - 3x2 + x - 1; x = -1, ?x = 
A. 
B. 
C. 
D. 
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The graph of the given function is drawn with a solid line. The graph of a function, g(x), transformed from this one is drawn with a dashed line. Find a formula for g(x).f(x) = x3
A. g(x) = (x + 5)3 B. g(x) = x3 + 5 C. g(x) = 5x3 D. g(x) = (x - 5)3
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A. 1,216.968 B. 12,169.68 C. 12,169.18 D. 1,216.918
Mathematics
Write an equation in slope-intercept form for the line shown.
A. y = x + 3 B. y = x - 3 C. y = -x - 3 D. y = -x + 3
Mathematics