Use the information given about the angle ?, to find the exact value of the indicated trigonometric function.cos ? = - , ? in quadrant II Find cos 2?.

A. - 
B.
C. - 
D.


Answer: C

Mathematics

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Solve the inequality.0.9(1.7 - x) + 0.7 > 3.4(x - 0.3) (Round to two decimal places if necessary)

A. x < 1.30 B. x > 1.30 C. x < 0.76 D. x > 0.76

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Choose the graph that matches the function. f(x) = 1

A.

B.

C.

D.

Mathematics

Find the component form of the indicated vector.Let u = . Find 9u.

A.
B.
C.
D.

Mathematics

Determine whether the relation is a function.{(-1, -6), (2, -5), (4, 9), (8, -5), (10, 3)}

A. Function B. Not a function

Mathematics