Simplify. Assume that all variables represent positive real numbers.
A. 
B. 
C. 
D. 
Answer: D
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Provide an appropriate response.Graph the parabola: y = x2 + 6x + 8. Determine the equation of the axis of symmetry.
A. y = 3 B. x = -3 C. x = 3 D. y = -3
Solve the equation.2(5 - 3x) = 
A. {-3}
B. {8}
C. {3}
D. 
The present value of a perpetual stream of income that flows continually at the rate of P(t) dollars per year is given by the formula
?
?
where r is the interest rate compounded continuously. Using this formula, find the present value of a perpetual net income stream that is generated at the rate of
?
?
dollars per year.
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Hint: 
.
?
A. 
B. ?
C. ?
D. ?
E. ?
Solve the variation problem.The amount of time it takes a swimmer to swim a race is inversely proportional to the average speed of the swimmer. A swimmer finishes a race in 25 seconds with an average speed of 6 feet per second. Find the average speed of the swimmer if it takes 37.5 seconds to finish the race.
A. 5 feet per second B. 3 feet per second C. 6 feet per second D. 4 feet per second