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
Answer: A
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Evaluate the exponential expression.(-10)2
A. -10,000 B. 100 C. 10,000 D. -100
Find the center, foci, and asymptotes of the hyperbola.
- 
= 1
A. C: (0, 0); F: (0, -12), (0, 12); A: y = 
x, y = - x
B. C: (0, 0); F: (0, -12), (0, 12); A: y = 
x, y = - 
x
C. C: (0, 0); F: (-15, 0), (15, 0); A: y = 
x, y = - 
x
D. C: (0, 0); F: (-15, 0), (15, 0); A: y = 
x, y = - 
x
Solve the problem.A home cooking equipment supply company employs 7 sales representatives and 6 product designers. How many ways can this company select 4 of these employees to send to a product demonstration convention in Oahu if at least 3 product designers must attend?
A. 504 B. 42 C. 168 D. 155
Find the area of the geometric figure.
Use 3.14 for ?.
A. 19.625 sq ft B. 31.4 sq ft C. 78.5 sq ft D. 157 sq ft