Find the exact value under the given conditions.cos ? = - ,   < ? < ?; sin ? = - , ? < ? < Find cos (? + ?).

A.
B.
C.
D.


Answer: C

Mathematics

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Find the perimeter (P) of each figure.

A. 59 units B. 79 units C. 118 units D. not enough information given

Mathematics

Provide an appropriate response.Fill in the blanks to complete the statement.  The graph of P(x) = 6(x - 9)2 - 7 is a parabola with axis of symmetry  and vertex .

A. x = 6; (-9, -7) B. (-9, -7); x = -9 C. x = 9; (-9,-7) D. x = 9; (9, -7)

Mathematics

Decide whether or not the points are the vertices of a right triangle.(4, 8), (6, 12), (8, 11)

A. Yes B. No

Mathematics

Use radical notation to write the expression. Do not simplify.p-9/10

A. -
B.
C. -
D.

Mathematics