Use the distributive law to write an equivalent expression.-(9x - 7)
A. 9x - 7
B. 63x
C. -9x + 7
D. -9x - 7
Answer: C
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Use the shell method to find the volume of the solid generated by revolving the shaded region about the indicated axis.About the y-axisx = 2
A. 
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B. 
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C. 
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D. 
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Find the x-intercepts of the graph of each equation.y = x2 - 10x + 16
A. (-2, 0), (-8, 0)
B. (2, 0), (8, 0)
C. 
, 
D. (2, 0), (-8, 0)
Factor out the greatest common factor. Be sure that the coefficient of the term of highest degree is positive.27x3 - 9x2 + 12x
A. x(27x2 - 9x + 12) B. 3x(9x2 - 3x + 4) C. 3(9x3 - 3x2 + 4x) D. 3x(9x3 - 3x2 + 4x)
Solve the problem.In one U.S. city, the quadratic function 
models the median, or average, age, y, at which 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. 1961, 23.5 years old B. 1961, 50.4 years old C. 1953, 36 years old D. 1936, 50.4 years old