Multiply.(x + y)(x - y)

A. x2 - y2
B. x2 - 4xy - 9y2
C. x2 - 4y2
D. x2 + 4xy - 9y2

Answer: A

Mathematics

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A. 0.3 B. 0.1 C. 0.4 D. 0.2 E. none of these

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A. 9
B. 17
C.
D.

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A. Inconsistent; no solutions B. (0, 5) C. (0, 6) D. (-1, 6)

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Use the information given about the angle ? to find the exact value of the indicated trigonometric function.tan ? = 3, ? < ? < Find tan .

A.
B.
C.
D.

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