Select the graph of the function below. Include two full periods.
?
?
A. ?
B. ?
C. ?
D. ?
E. ?
Answer: E
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Write one or more inequalities that describe the set of points.The closed region bounded by the spheres of radius 2 and 6, both centered at the origin, and the planes 
and 
A. 4 ? x2 + y2 + z2 ? 36 and 1 ? x ? 3 B. 2 < x2 + y2 + z2 < 6 and x = 1 and x = 3 C. 2 ? x2 + y2 + z2 ? 6 and x = 1 and x = 3 D. 4 < x2 + y2 + z2 < 36 and 1 < x < 3
Consider the system 
(a) Rewrite it in the form AX = B where, A, B, and X are appropriate matrices.(b) Find the inverse of A.(c) Solve the system by computing A-1B.
What will be an ideal response?
Given functions f and g, determine the domain of f + g.f(x) = 2x - 5,g(x) = 5x - 10
A. (0, ?) B. (-?, -2) or (-2, ?) C. (-?, 0) or (0, ?) D. (-?, ?)
Factor, if possible.12x4 + 25x2+ 12
A. (12x2 + 4)(x2 + 3) B. Prime C. (3x2 - 4)(4x2 - 3) D. (3x2 + 4)(4x2 + 3)