Use identities to simplify the expression.
A. -cos x
B. sin2 x
C. cos2 x
D. -sin x
Answer: D
Mathematics
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Find the coordinates of the centroid of the curve.Find the coordinates of the centroid of the curve x = 4 cos t + 4t sin t, y = 4 sin t - 4t cos t, 
A. (
, 
) = 
B. (
, 
) = 
C. (
, 
) = 
D. (
, 
) = 
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Determine how many lines will be in the truth table for the following statement.p ? (~q ? r)
A. 8 B. 3 C. 6 D. 9
Mathematics
Solve the problem.Find the exponent that makes the equation true: 3m = 59,049
A. 40 B. 11 C. 20 D. 10
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Graph the equation.y + 4 = 0
A. 
B. 
C. 
D. 
Mathematics