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. 1949, 46.1 years old
B. 1949, 26.1 years old
C. 1936, 46.1 years old
D. 1951, 36 years old
Answer: B
Mathematics
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Determine whether the given equation is linear or nonlinear.7x + 2 = 9
A. linear B. nonlinear
Mathematics
Perform the indicated operations and simplify the result. Leave the answer in factored form.
? 
A. 
B. 
C. 
D. 
Mathematics
Solve the problem.The value of a particular investment follows a pattern of exponential growth. In the year 2017, you invested money in a money market account. The value of your investment t years after 2017 is given by the exponential growth model 
When will the account be worth $7788?
A. 2028 B. 2026 C. 2025 D. 2027
Mathematics
Solve the problem.Evaluate (f + g)(2) given f(x) = x - 3 and g(x) = x - 7.
A. 14 B. -6 C. 8 D. 0
Mathematics