Write an equation for the parabola with vertex at the origin.Focus (0, 7)
A. x2 = 7y
B. y2 = 28x
C. x2 = 28y
D. y2 = 7x
Answer: C
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Find an approximate value for the integral, using Simpson's rule with n intervals.
, n = 4
A. 
B. 
C. 
D. 
Solve the problem.An electron beam is deflected in a back-and-forth pattern by a time-periodic voltage, V(t), according to
where t = 0 marks a reference point in time that is not necessarily the beginning of oscillation.Find ao (if it is not zero), two nonzero cosine terms (if they exist), and two nonzero sine terms (if they exist) of the Fourier series for the time-dependent voltage.
A. V(t) = 
- 
B. V(t) = ? - 
C. V(t) = 
- 
D. V(t) = ? - 
Solve the problem.The average amount of money spent on laundry soap in 2006 by a family of three was $800. While the average amount of money spent by a family of four was $4000. Find the average rate of change of money spent on laundry soap with respect to family size.
A. $1.60 per person B. $320.00 per person C. $3200.00 per person D. -$3200.00 per person
Solve the problem.The space in a landfill (in acres) decreases with time as given by the function 
where t is measured in years. How much space is left when t = 6?
A. 110 acres B. 200 acres C. 520 acres D. 280 acres