Solve.Tameeka wants to know the total number of hours she has worked this week. Her time card indicates the following hours: Monday, 5.12 hours; Tuesday, 6.57 hours; Thursday, 4.06 hours. How many hours has Tameeka worked?
A. 16.75 hr
B. 15.65 hr
C. 15.75 hr
D. 14.75 hr
Answer: C
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Solve the problem.In 1984, the life expectancy for a female born in the United States was 75.7 years and was increasing at a rate of 0.25 years per year. Assume that this rate of increase remains constant. Using an appropriate linear equation as a model, estimate the life expectancy of a female born in the U.S. in 1998.
A. 80.20 years B. 79.20 years C. 89.20 years D. 3.50 years
Solve the problem. Round your answer to the nearest tenth, if necessary.Two pipes together can fill a large tank in 10 hr. One of the pipes, used alone, takes 15 hr longer than the other to fill the tank. How long would each pipe take to fill the tank alone?
A. 10 hr; 25 hr B. 15 hr; 30 hr C. 25 hr; 40 hr D. 12.5 hr; 27.5 hr
Find the horizontal asymptote, if any, of the graph of the rational function.f(x) = 
A. y = 2
B. y = 
C. y = 0
D. no horizontal asymptote
Find the particular solution for the initial value problem. x5
= y; y(1) = 1
A. y = e-1/(6x6) + 1/6 B. y = e-1/(4x4) + 1/4 C. y = e-1/(4x4) + 1 D. y = e-1/x4 + 1