Solve.The angular velocity ? (in rad/s) of a pendulum is 
Find the angular displacement ? as a function of t if ? = 0 for t = 0.
A. ? = -0.3 sin 8t + 0.3
B. ? = 0.3 cos 8t
C. ? = -0.3 sin 8t
D. ? = -2.4sin 8t
Answer: C
Mathematics
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A. 
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Compute the gradient of the function at the given point.
A. -7i + 4j - 10k B. -10i - 9j - 3k C. 70i - 36j + 30k D. 70i + 36j + 30k
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Find the vertex, axis of symmetry, and y-intercept of the parabola that has the given focus and directrix.Focus 
, directrix y = - 
A. 
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D. 
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D. 
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