Find the range of the polynomial function. f(x) = x3 - 7x2 - 7x + 5
A. (-?, 5]
B. [5, ?)
C. [0, ?)
D. (-?, ?)
Answer: D
Mathematics
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Find the magnitude of u × v and the unit vector parallel to u × v in the direction of u × v.u = 2i + 2j - k, v = -i + k
A. 3; 
i + 
j - 
k
B. 3; 
i - 
j + 
k
C. 9; 
i - 
j + 
k
D. 9; 
i + 
j - 
k
Mathematics
a = 7, b = 8, c = 3. Using the Law of Cosines, find Angle A.
What will be an ideal response?
Mathematics
Use the graph to find the intervals on which it is increasing, decreasing, or constant.
A. Increasing on (-?, ?) B. Increasing on (-?, 0); decreasing on (0, ?) C. Decreasing on (-?, ?) D. Decreasing on (-?, 0); increasing on (0, ?)
Mathematics
Solve the problem.An isosceles triangle has at least two sides of equal length. Determine whether the triangle with vertices 
and 
is isosceles.
A. Yes B. No
Mathematics