Express f(x) in complete factored form.f(x) = x2 + 16
A. f(x) = (x + 4i)(x - 4i)
B. f(x) = (x + 4)2
C. f(x) = (x + 4i)2
D. f(x) = (x + 16i)(x - 16i)
Answer: A
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A. Always B. Sometimes C. Never
Specify the center and radius of the circle.x2 + y2 - 18x + 4y + 76 = 0
A. center: (-2, 9); radius: 3 B. center: (9, -2); radius: 3 C. center: (2, -9); radius: 9 D. center: (-9, 2); radius: 9
Using the horizontal-line test, determine whether the function is one-to-one.
A. one-to-one B. not one-to-one
Find the area of the triangle by using Heron's formula. Round the answer to the nearest tenth. All sides are measured in inches.a = 151, b = 165, c = 174
A. 14,296.5 sq in. B. 17,155.8 sq in. C. 730.7 sq in. D. 11,437.2 sq in.