Find the length of the parametric curve defined over the given interval.x = 5 sin t + 5t, y = 5cos t, 0 ? t ? ?

A. 20
B. 30
C. 5?
D. 10

Answer: A

Mathematics

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Solve the problem.Find the Hill-Huntington cutoff point for rounding up a modified quota of 12.885.

A. 13.491 B. 11.489 C. 12.490 D. 12.961

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Find the standard-form equation of the hyperbola centered at the origin which satisfies the given conditions. Foci at (, 0), (-, 0); asymptotes y = 5x, y = -5x

A. x² -  = 1
B. - y² = 1
C.   - x² = 1
D. y² -  = 1

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Solve the polynomial equation symbolically.x2 - 81 = 0

A. 9, -9 B. 27, -27 C. 18, -18 D. 36, -36

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Prove the identity.cot2x = (csc x - 1)(csc x + 1)

What will be an ideal response?

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Mathematics