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. 1936, 51.7 years old
C. 1965, 51.7 years old
D. 1965, 21 years old
Answer: D
Mathematics
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Evaluate the expression for the given value or values.12(x + 8)2 - 23(x + 8) when x = 8
A. 3440 B. 2704 C. 3056 D. -112
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Choose the best estimate from the list.6
+ 10
is approximately 16, 16
, 16
, 17.
A. 17
B. 16
C. 16
D. 16
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Provide an appropriate response.The single discount equivalent rate of the trade discount 10/15/30 is:
A. 0.4645 B. 0.4500 C. 0.5500 D. 0.4546
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Solve the equation on the interval [0, 2?).sin2 x - cos2 x = 0
A. 
, 
B. 
C. 
, 
, 
, 
D. 
, 
Mathematics