Find the unknown length in the right triangle. Simplify the answer if necessary.

A. 8
B. 8
C. 2
D. 2

Answer: B

Mathematics

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Find  by using logarithmic differentiation.y = (x3 + 1)2(x - 1)4x2

A.  +  + 
B. (x3 + 1)2(x - 1)4x2(2ln(x3 + 1) + 4ln(x - 1) + 2ln x)
C. (x3 + 1)2(x - 1)4x2
D. (x3 + 1)2(x - 1)4x2

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Mathematics

Find the coordinates of the vertex of the quadratic function.f(x) = -(x + 2)2 + 6 

A. (6, 2) B. (6, -2) C. (2, 6) D. (-2, 6)

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Mathematics

The graph of a function f is given. Use the graph to answer the question.Is f(20) positive or negative?

A. positive B. negative

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Mathematics

Find the length of the unknown side of the right triangle. In each case, a and b represent the lengths of the legs and c represents the length of the hypotenuse.a = , b = ; find c

A. 25
B. 5
C.
D. 533

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Mathematics