Solve the problem.A weight attached to a spring is pulled down 3 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 second.
A. y = 3cos 10t
B. y = -3cos 10t
C. y = 3cos 5t
D. y = -3cos 5t
Answer: B
Mathematics
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Use differentiation to determine whether the integral formula is correct.
dx = 
+ C
A. Yes B. No
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Integrate the function.
A. x + ln
+ C
B. 
+ C
C. 7 ln
+ C
D. 7 ln
+ C
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Simplify the expression. Use positive exponents. Assume variables represent nonzero real numbers.(-4x5y)4
A. (-4)4x20y4 B. (-4)4x9y4 C. -16x5y D. -16x5y4
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Find the slope of the line tangent to the graph of the function at the given value of x.y = -x-5 + x-3; x = 1
A. 2 B. -8 C. -2 D. 8
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