Find the exact value of the indicated trigonometric function of ?.tan ? = - , 90°< ? < 180°Find cos ?.

A.
B.
C. - 
D. -20


Answer: C

Mathematics

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Find the area of the region specified in polar coordinates.the region enclosed by the curve r = 9 - 6 cos ?

A. ?
B. ?
C. 117?
D. 99?

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Solve the problems.Julie rode her bicycle 42 kilometers in one afternoon. How many meters did she ride?

A. 0.042 m B. 4,200 m C. 0.42 m D. 42,000 m

Mathematics

Fill in the blank with one of the words or phrases listed below.Two numbers that are the same distance from 0 but lie on opposite sides of 0 are called .

A. opposites B. unlike terms C. like terms D. reciprocals

Mathematics

Solve the equation.g + 28.14 = 0

A. -29.14 B. -28.14 C. 29.14 D. 28.14

Mathematics