Evaluate.

A. 20
B. 2!
C. 5
D.

Answer: A

Mathematics

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Factor completely. If the polynomial is prime, then state this as your answer.25x2 + 80xy + 64y2

A. (5x - 8y)2 B. (5x + 8y)(5x - 8y) C. (5x + 8y)2 D. (25x + y)(x + 64y)

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Solve the problem.Find all points on the curve y = sin x, 0 ? x ? 2?, where the tangent line is parallel to the line 

A. , 
B. , 
C. , 
D. , 

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Perform the indicated operation. Write the answer in scientific notation.(16.92 × 102) ÷ (3.6 × 10-5)

A. 9.4 × 10-3 B. 9.4 × 107 C. 4.7 × 107 D. 4.7 × 10-3

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Provide an appropriate response.Using the following diagram, prove that ?ADB ~ ?BDC.

What will be an ideal response?

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