Use identities to find the exact value of the function for the given value.tan ? =  and ? is in quadrant III; Find cos ?.

A. - 
B. - 
C.
D.


Answer: A

Mathematics

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Graph the function.y = (x - 4)2/3

A.

B.

C.

D.

Mathematics

Solve.Wind resistance or atmospheric drag tends to slow down moving objects. Atmospheric drag varies jointly as an object's surface area A and velocity v. If a car traveling at a speed of 60 mph with a surface area of 36 ft2 experiences a drag of 345.6 N (Newtons), how fast must a car with 45 ft2 of surface area travel in order to experience a drag force of 460.8 N?

A. 69 mph B. 64 mph C. 61 mph D. 66 mph

Mathematics

Solve the problem.Evaluate cos-1  degrees.

A. 180° B. 0° C. 90° D. -90°

Mathematics

Solve.x - 5 = 

A. 10, 2 B. No solution C. 5 D. 10

Mathematics