Solve the equation.
x =
A.
B.
C.
D.
Answer: D
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Find y '.y = 
A. - 
- 1
B. 
+ 1
C. - 
- 1
D. 
+ 1
Express the statement as an equation involving the indicated variables.The surface area S of a cube is 6 times the square of the length x of a side.
A. S = 6x2 B. S = x2 C. S = 6 + x2 D. S = 6x
Find the inflection points, if any, of the function. Otherwise, answer no solution.
?
What will be an ideal response?
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. 1957, 23.2 years old B. 1954, 36 years old C. 1957, 50.2 years old D. 1936, 50.2 years old