Assume that x and y are differentiable functions of t. A point is moving along the graph of the equation 
At what rate is y changing when 
and is changing at a rate of 4 units/sec?
?
A. 96 units/sec
B. 92 units/sec
C. 87 units/sec
D. 60 units/sec
E. 44 units/sec
Answer: D
Mathematics
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Solve the problem.John Lee's savings account has a balance of $3856. After 2 years, what will the amount of interest be at 4% compounded semiannually?
A. $317.86 B. $155.78 C. $308.48 D. $314.65
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Find the derivative of y with respect to x, t, or ?, as appropriate.y = ln 2x2
A. 
B. 
C. 
D. 
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Determine if the given function y = f(x) is a solution of the accompanying differential equation.Differential equation: y' = e- 6x - 6yInitial condition: y(- 6) = 0Solution candidate: y = (x + 6)e- 6x
A. No B. Yes
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Find an equation of the line containing the given pair of points(7, -7) and (-8, 8)
A. y = -x - 7
B. y = - 
x
C. y = x
D. y = -x
Mathematics