Multiply.(8 + 4i)(3 - 4i)
A. -16i2 - 20i + 24
B. 40 + 20i
C. 40 - 20i
D. 8 + 44i
Answer: C
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Find the domain and range.f(x) = x2 + 3
A. Domain: x > 0; range: All real numbers B. Domain: x > 3; range: All real numbers C. Domain: All real numbers; range: y ? 3 D. Domain: All real numbers; range: y > 0
Solve.A meteor circles the earth in an elliptical orbit. The major axis of the elliptical orbit is 22 × 108 miles long and the minor axis is 12 × 108 miles long. If the earth is at one focus of the orbit what is the distance from the other focus?
A. 2 × 
× 108 mi
B. 2 × 
× 103 mi
C. 2 × 
× 104 mi
D. 
× 104 mi
Find the domain of the rational function.f(x) = 
A. all real numbers B. {x|x ? 1} C. {x|x ? -1} D. {x|x ? 0}
Between the years 1960 and 2002, the percent of women in the work force is given by 
, where x is the number of years past 1950 (Source: U.S. Bureau of Labor Statistics). What does this model estimate to be the percent of women in the work force in 2019? Round your answer to two decimal places.
?
A. 64.24 B. 61.69 C. 66.61 D. 75.71 E. 51.70