Solve the problem.The following graph shows data for a recent train ride from New York to Toronto. At what rate did the train travel?
A. 60 miles per hour
B. 50 miles per hour
C. 120 miles per hour
D. 65 miles per hour
Answer: A
Mathematics
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Solve the problem.dy/dt = ky + f(t) is a population model where y is the population at time t and f(t) is some function to describe the net effect on the population. Assume k = .02 and 
when t = 0. Solve the differential equation of y when f(t) = -19t.
A. y = 950t + 47,500 - 37,500e.02t B. y = -950t - 47,500 - 37,500e.02t C. y = 950t + 47,500 - 37,500e-.02t D. y = -950t + 47,500 - 37,500e-.02t
Mathematics
Convert.0.13 liters to milliliters
A. 130 ml B. 0.013 ml C. 0.00013 ml D. 13 ml
Mathematics
Find the product AB, if possible.A = 
, B = 
A. 
B. 
C. AB is not defined.
D. 
Mathematics
Add.-15 + (-14) + (-1) + (-8)
A. -38 B. -6 C. -8 D. 20
Mathematics