Find the limit, if it exists.
A. Does not exist
B. - 
C. 0
D. 
Answer: D
Mathematics
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Decide if the given number is a solution to the given equation.9x2 + 7 = 61; 3
A. No B. Yes
Mathematics
Find the vertex of the graph of the quadratic function.f(x) = -x2 - 10x + 9
A. (5, -16) B. (-10, 9) C. (-5, 34) D. (5, -66)
Mathematics
Solve.Given f(x) = x2 + 5x + 6, find all values for x for which f(x) > 0.
A. (-?, -3) B. (-3, -2) C. (-2, ?) D. (-?, -3) ? (-2, ?)
Mathematics
Use the information given about the angle ?, 0 ? ? ? 2?, to find the exact value of the indicated trigonometric function.cos ? = - 
, 
< ? < ?Find cos(2?).
A. - 
B. 
C. 
D. - 
Mathematics