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. 1952, 36 years old
B. 1936, 49.2 years old
C. 1958, 24.2 years old
D. 1958, 49.2 years old
Answer: C
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Find the average value of the function f over the given region.f(x, y) = ex2 over the region bounded by 
, 
, 
, and 
.
A. e - 1
B. 
C. 
D. 2e - 1
Use a proportion to solve the problem.If 7 sandwich rolls cost $1.82, how much will 25 rolls cost?
A. $12.74 B. $6.50 C. $7.50 D. $14.74
Solve the problem.The weight of a liquid varies directly with its volume V. If the weight of the liquid in a cubical container 
on a side is 128 g, find the weight of the liquid in a cubical container 3 cm on a side.
A. 15 g B. 27 g C. 54 g D. 6 g
Use the zero-product property to find all complex solutions of the equation.x3 - 8x2 + x - 8 = 0
A. {-8, ±i} B. {±1, 8} C. {8, ±i} D. {±8, i}