Solve the equation. Express radicals in simplest form.x2 + 2 = 27
A. {-5, 5}
B. {13.5}
C. {5}
D. {-4, 4}
Answer: A
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Find the value of each square root by use of a calculator. Each number is approximate.
+ 
A. 4.7506 B. 6.5863 C. 4.75060 D. 6.58630
Determine where the function is increasing and where it is decreasing.f(x) = x2 + 10x
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, ?)
Find the x- and y-intercepts of f.f(x) = x2(x - 5)(x - 6)
A. x-intercepts: 0, 5, 6; y-intercept: 0 B. x-intercepts: 0, 5, 6; y-intercept: 30 C. x-intercepts: 0, -5, -6; y-intercept: 30 D. x-intercepts: 0, -5, -6; y-intercept: 0
Use the information given about the angle ?, 0 ? ? ? 2?, to find the exact value of the indicated trigonometric function.csc ? = - 
, tan ? > 0Find cos(2?).
A. - 
B. 
C. 
D. 