Find dy/dt.y = cos()

A.  sin()
B. -sin
C. -sin()
D. -  sin()


Answer: A

Mathematics

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Use the rules for exponents to rewrite the expression and then evaluate the new expression. (2-2)0 

A. 1
B.
C. 0
D. -4 

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Find the sum of the series.

A.
B.
C.
D.

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Factor the binomial completely.50a4b - 32b3

A. 2b(5a - 4b)2 B. 2b(5a2 + 4b)(5a2 - 4b) C. (10a + 8b)(5ab - 4b2) D. 2b(5a + 4b)2

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Provide an appropriate response.Find the indicated part of triangle ABC. Round to the nearest 0.1°. Find A if c = 13 m and a = 7 m. 

A. 11.0° B. 57.4° C. 32.6° D. 0.6°

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