Solve the problem.The velocity of a particle (in 
) is given by v = t2 - 6t + 4, 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 s
B. 3 s
C. 6 s
D. 2 s
Answer: B
Mathematics
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Solve the problem.Two wheels are rotating in such a way that the rotation of the smaller wheel causes the larger wheel to rotate. The radius of the smaller wheel is 
and the radius of the larger wheel is 
Through how many degrees will the larger wheel rotate if the smaller one rotates 
A. 61.12° B. 63.22° C. 62.22° D. 61.22°
Mathematics
Use the following information to classify the triangle and solve for the missing angle. 
A. right, 40° B. right, 90° C. obtuse, 50° D. acute, 40°
Mathematics
Find the Cartesian coordinates of the given point.
A. (2
, -2
)
B. (2
, -2)
C. (-2
, -2
)
D. (-4
, -4
)
Mathematics
Find the value of the missing number.8 ? ? = -24
A. -32 B. 1 C. 32 D. -3
Mathematics