Solve the problem.A weight attached to a spring is pulled down 2 inches below the equilibrium position. Assuming that the frequency of the system is 
cycles per second, determine a trigonometric model that gives the position of the weight at time t seconds.
A. y = 2 cos 5t
B. y = -2 cos 10t
C. y = -2 cos 5t
D. y = 2 cos 10t
Answer: B
Mathematics
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Identify the specified numbers.The real numbers in the following list:
, -6, 
, 6.3, -0.83, 
, 
, 
A. 
, -6, 6.3, -0.83, 
B. -6, 6.3, -0.83
C. 
, -6, 
, 6.3, -0.83, 
, 
, 
D. 
, -6, 6.3, -0.83
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Find an equation for the surface obtained by rotating the line x=4z about the x-axis.
What will be an ideal response?
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Write the fraction in decimal notation.
A. 0.92 B. 0.931 C. 0.911 D. 0.88
Mathematics
Solve the inequality.x2 + 4x ? 0
A. (-?, 0] or [4, ?) B. [-4, 0] C. (-?, -4] or [0, ?) D. [0, 4]
Mathematics