Divide.
A. 15x4 + 21x2 + 27
B. 5x4 - 7x2 - 9
C. 5x8 + 7x6 + 9x4
D. 5x4 + 7x2 + 9
Answer: D
Mathematics
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Plot the point in a polar coordinate system.(4.5, -?)
A. 
B. 
C. 
D. 
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Evaluate.If f(x) = -
, find f(-2).
A. 11 B. -11 C. 7 D. -7
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Solve by using the quadratic formula:
Mathematics
Solve the equation symbolically.21.9 + 4.4t = 2.98
A. -18.92 B. -14.3 C. 62.72 D. -4.3
Mathematics