Solve the problem.The quadratic function 
models the median, or average, age, y, at which U.S. men were first married x years after 1900. In which year was this average age at a minimum? (Round to the nearest year.) What was the average age at first marriage for that year? (Round to the nearest tenth.)
A. 1953, 36 years old
B. 1960, 22.3 years old
C. 1936, 50.6 years old
D. 1960, 50.6 years old
Answer: B
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Rewrite the fractions as equivalent fractions with the LCD.
and 
; 30
A. 
and 
B. 
and 
C. 
and 
D. 
and 
Use a CAS integration utility to evaluate the triple integral of the given function over the specified solid region.
over the rectangular solid 
, 
, 
A. - 162960
B. - 
C. - 108640
D. - 86912
Solve the linear inequality. Graph the solution set on a number line, and express the solution using interval notation.5 - 3(1 - x) ? -1
A. (-?, -1)
B. (-?, -1]
C. (-?, 0]
D. [-1, ?)
In a right triangle, find the length of the side not given. Let c represent the length of the hypotenuse. Give an answer to the nearest tenth if necessary.a = 1 ft, c = 30 ft
A. b ? 31 ft B. b ? 30.0 ft C. b = 29 ft D. b ? 5.4 ft