Solve the problem.A weight attached to a spring is pulled down 4 inches below the equilibrium position. Assuming that the period of the system is 
second, determine a trigonometric model that gives the position of the weight at time t seconds.
A. y = -4cos 7?t
B. y = 4cos 
t
C. y = -4cos 14?t
D. y = 4cos 14?t
Answer: C
Mathematics
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A. 
B. 
C. 
D. 
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Identify the vertex of the quadratic equation.f(x) = x2 + 8
A. (-8, 0) B. (0, -8) C. (8, 0) D. (0, 8)
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Use special right triangles to evaluate the expression.sin 
A. 
B. 
C. 
D. 
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Find the sum of the geometric series.4 + 8 + 16 + 32 + 64 + . . . + 4 ? 29
A. 4094 B. 4129 C. 4092 D. 4072
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