Solve the equation.72x = 5x + 1 (Round to the nearest thousandth.)
A. 4.783
B. 0.827
C. 1.827
D. 0.705
Answer: D
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Solve the problem.When an object weighing 5 pounds is attached to the lowest point P of a spring that hangs vertically, the spring is extended 6 inches. The 5-pound weight is replaced by a 3-pound weight, and the system is allowed to come to equilibrium. The 3-pound weight is then pulled downward another 15 feet and then released. Find the equation of motion. Neglect friction.
A. y = 15 cos 10.328t B. y = 15 cos 1.826t C. y = 15 cos 106.667t D. y = 15 cos 2.981t
Solve the problem.Given the velocity and initial position of a body moving along a coordinate line at time t, find the body's position at time t.v = cos 
t, s(0) = 1
A. s = 2? sin 
t
B. s = sin t +1
C. s = 
sin 
t + ?
D. s = 
sin 
t +1
Write as a radical expression. Simplify if possible.(-49)3/2
A. (
)3 = -3.5
B. (
3 = 7
C. Not a real number
D. (
)3 = -7
Find the coordinates of the vertex of the parabola.y = 6x2 - 60x + 156
A. (5, 0) B. (5, 6) C. (6, 5) D. (6, 0)