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
Answer: B
Mathematics
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A. x > 0
B. x ? 0
C. x < 0
D. x ? 0
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Write the number as the product of a real number and i.
A. 
B. i
C. i
D. -i
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A. 
B. 
C. 
D. 
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A man pulls a sled horizontally by exerting 32lb on the rope that's tied to its front end. If the rope makes an angle of 45° with horizontal, find the work done in moving the sled 55 ft.
What will be an ideal response?
Mathematics