Solve the quadratic inequality. Graph the solution.v2 + 4v - 21 ? 0
A. [3, ?)
B. (-?, -7]
C. [-7, 3]
D. (-?, -7] ? [3, ?)
Answer: D
Mathematics
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Find the area of the specified region.Shared by the circles r = 2 and r = 4 sin ?
A. 
(2? + 3
)
B. 2?
C. 
(4? - 3
)
D. 
?
Mathematics
For the given function f(x), find f-1(x).f(x) = 
A. f-1(x) = 
B. Not one-to-one
C. f-1(x) = 
D. f-1(x) = 
Mathematics
Solve the problem.You have 84 feet of fencing to enclose a rectangular region. What is the maximum area?
A. 437 ft2 B. 7056 ft2 C. 1764 ft2 D. 441 ft2
Mathematics
Give the equation of the vertical asymptote(s) of the rational function.g(x) = 
A. x = 1 B. x = 1, x = -6 C. x = -1, x = 6 D. x = -1
Mathematics