Solve the problem.A weight attached to a spring is pulled down 3 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 = 3 cos 
t
B. y = -3 cos 10?t
C. y = 3 cos 10?t
D. y = -3 cos 5?t
Answer: B
Mathematics
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Convert to decimal notation.5.573 × 10-5
A. 0.0005573 B. 0.00005573 C. -557,300 D. 0.000005573
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Find the area of the specified region.Inside the lemniscate r2 = a2 sin 2?, a > 0
A. ?a2
B. 0
C. a2
D. 
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Find the sum. Add horizontally.(-6y2 + 9) + (3y2 - 3y - 2)
A. -3y2 + 3y + 7 B. -3y2 - 3y + 11 C. -9y2 - 3y + 7 D. -3y2 - 3y + 7
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Match the correct function to the graph.
A. y = |2 - x| B. y = |x + 2| C. y = x - 2 D. y = |1 - x|
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