Solve the problem.The table below shows the population of a certain city in various years. Use regression (or some other method) to find values for a and b so that 
models the data, where x represents the number of years since 1980 and f(x) represents the population of the city in hundreds of thousands. Round your answers to 5 significant digits.
A. a ? 2.1375, b ? 0.44316
B. a ? 2.6352, b ? 0.47558
C. a ? 1.8506, b ? 0.51209
D. a ? 1.7025, b ? 0.53750
Answer: B
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A graph of y = f(x) follows. No formula for f is given. Graph the given equation.y = 
f(x - 1) + 3
?
A. 
B. 
C. 
D. 
Solve the right triangle. Express angles in decimal degrees.
B = 54.1°, c = 0.0536
A. A = 54.1°, a = 0.0314, b = 0.0434 B. A = 35.9°, a = 0.0314, b = 0.0434 C. A = 54.1°, a = 0.0434, b = 0.0314 D. A = 35.9°, a = 0.0434, b = 0.0314
Solve the problem.Find the extreme values of 
subject to 
and 
A. Maximum: 
at 
minimum: 
at 
B. Maximum: 
at 
minimum: 
at 
C. Maximum: 
at 
minimum: 
at 
D. Maximum: 
at 
minimum: 
at 
Determine whether the given ordered pair is a solution of the given equation.(x - 4)2 + (y + 4)2 = 0; (3, -3)
A. Yes B. No