Determine where the function is increasing and where it is decreasing.f(x) = x2 - 10x + 25
A. increasing on (-5, ?)
decreasing on (-?, -5)
B. increasing on (5, ?)
decreasing on (-?, 5)
C. increasing on (-?, -5)
decreasing on (-5, ?)
D. increasing on (-?, 5)
decreasing on (5, ?)
Answer: B
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Solve the problem.Assume that the weights of quarters are normally distributed with a mean of 5.67 g and a standard deviation 0.070 g. A vending machine will only accept coins weighing between 5.47 g and 5.77 g. What percentage of legal quarters will be rejected?
A. 2.48% B. 0.0196% C. 3.95% D. 1.62%
What property of whole-number multiplication justifies the equality?6 ? 1 = 6
A. Distributive property B. Commutative property C. Associative property D. Multiplicative-identity property
Polar coordinates of a point are given. Find the rectangular coordinates of the point.(3, 120°)
A. 
B. 
C. 
D. 
Determine the vertex, focus, and directrix of the parabola and sketch its graph.x2 - 6x + 4y + 21 = 0
A. vertex: (3, -3)
focus: (2, -3)
directrix: x = 4
B. vertex: (3, -3)
focus: (4, -3)
directrix: x = 2
C. vertex: (3, -3)
focus: (3, -4)
directrix: y = -2
D. vertex: (3, 3)
focus: (3, 2)
directrix: y = 4