A horse trots in a perfect circle around its trainer at the end of a 20-foot-long rope. How far does the horse travel as it circles the trainer once?
A. 400 ft
B. 63 ft
C. 1,657 ft
D. 126 ft
E. 1,257 ft
Answer: D
Mathematics
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A. 
B. 9
C. -6
D. 
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Use synthetic division to decide whether the given number k is a zero of the given polynomial function.k = -3; f(x) = x4 + 5x2 - 126
A. Yes B. No
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Divide and simplify.
÷ 
A. 
B. 
C. 
D. z - 4
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Solve the quadratic equation. Write complex solutions in standard form.x2 - 4x + 13 = 0
A. 2 ± 3i B. 4 ± 6i C. -2 ± 3i D. 5, -1
Mathematics