Find the axis of symmetry of the given function.f(x) = -2x2 + 15x + 6
A. x = 
B. x = - 
C. x = - 
D. x = 
Answer: A
Mathematics
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Solve.x2 - 4x + 3 > 0
A. (1, 3) B. (-?, 1) ? (3, ?) C. (-?, 1) D. (3, ?)
Mathematics
Solve the problem.The motion of a spring-mass system is described by the equation 
where y is the distance in feet from the equilibrium position and t is time in seconds. If the weight is 18 feet from the ceiling in a state of equilibrium, find the starting position of the weight 
A. 12 ft B. 6 ft C. 36 ft D. 18 ft
Mathematics
Solve the problem.Find the centroid of the region bounded above by the sphere 
and below by the plane 
if the density is constant.
A. 
= 0, 
= 0, 
= 
B. 
= 0, 
= 0, 
= 12
C. 
= 0, 
= 0, 
= 
D. 
= 0, 
= 0, 
= 
Mathematics
Simplify the fraction.
A. 10c2 B. -10c2 C. -3c2 D. 3c2
Mathematics