Determine where the function is increasing and where it is decreasing.f(x) = x2 - 8x + 7
A. increasing on (-9, ?)
decreasing on (-?, -9)
B. increasing on (-?, 4)
decreasing on (4, ?)
C. increasing on (4, ?)
decreasing on (-?, 4)
D. increasing on (-?, -9)
decreasing on (-9, ?)
Answer: C
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A. 
B. 
C. 
D. 6
Use mathematical induction to prove that the statement is true for every positive integer n.4 ? 6 + 5 ? 7 + 6 ? 8 + . . . +(n + 3)(n + 5) = 
What will be an ideal response?
Use the determinant feature of a graphing calculator to solve the system by Cramer's rule . (Round to one decimal place.)2.2x + 14.0y + 2.9z = 4.63.6x - 7.0y - 0.6z = -4.53.4x + 16.7y + 4.9z = 11.5
A. {(-1.4, -0.5, 4.9)} B. {(3.4, 1.2, -12.3)} C. {(-5.6, -1.9, 20.1)} D. {(-2.0, -0.7, 7.4)}
Write the ratio as a fraction in lowest terms. Be sure to make all necessary conversions.8 yards to 27 feet
A. 
B. 
C. 
D. 