Solve the problem.The velocity of a particle 
is given by 
where t is the time (in seconds) for which it has traveled. Find the time at which the velocity is at a minimum.
A. 4.5 s
B. 9 s
C. 6 s
D. 3 s
Answer: A
Mathematics
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Solve the equation (x in radians and ? in degrees) for all exact solutions where appropriate. Round approximate answers in radians to four decimal places and approximate answers in degrees to the nearest tenth.3 csc2 ? = 4 csc ?
A. {48.6° + 360°n, 131.4° + 360°n} B. {0° + 360°n, 48.6° + 360°n, 131.4° + 360°n, 180° + 360°n} C. {0° + 360°n, 48.6° + 360°n, 131.4° + 360°n, 228.6° + 360°n} D. {0° + 360°n, 48.6° + 360°n, 131.4° + 360°n}
Mathematics
Graph the pair of parametric equations in the rectangular coordinate system.x = 4 + 6 sin t, y = 4 + 6 cos t; 0 ? t ? 2? 
A. 
B. 
C. 
D. 
Mathematics
Convert the units.37 m = cm
A. 37,000 cm B. 3700 cm C. 0.037 cm D. 0.37 cm
Mathematics
Find the value of the expression.log2222
A. 1 B. 10 C. 0 D. 22
Mathematics