Find the exact value of the indicated trigonometric function of the angle ? in the figure. Rationalize the denominator where necessary.Find cos ?.

A.
B.
C.
D.


Answer: C

Mathematics

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Find the probability of flipping a coin four times, using a tree diagram, and getting at least two tails. ?

A.


B.

?


C.

?


D.

?


E.

? Cannot be determined without conducting an experiment.


Mathematics

Convert the units using unit fractions.320 min =   hr

A. 5
B. 19,200
C. 3200
D. 5

Mathematics

Perform the indicated operations. Express the answer as a single polynomial in standard form.6x5(-4x7 + 2x2 - 4)

A. -24x12 + 12x7 B. -24x12 + 2x2 - 4 C. -24x7 + 12x2 - 24 D. -24x12 + 12x7 - 24x5

Mathematics

Give the ordered pairs for the points labeled on the graph.

A. A(-1, 5); B(0, 5) B. A(1, 5); B(0, 5) C. A(1, -5); B(1, -5) D. A(1, 5); B(0, -5)

Mathematics