Find the measures of two angles, one positive and one negative, that are coterminal with the given angle.
A. 
+ 360°; 
- 360°
B. 
; - 
C. 
; - 
D. 
; - 
Answer: D
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Solve the problem.A boat is towed toward a dock by a cable attached to a winch that stands 15 ft above the water level (see figure). Let ? be the angle of elevation of the winch and let z be the length of the cable as the boat is towed toward the dock. Compute 
when 
A. 
= -0.00966
B. 
= -0.42962
C. 
= -0.00075
D. 
= -0.01131
For the functions f(x) and g(x), determine the domain of (f/g)(x) (the quotient of f and g).f(x) = 2x - 6, g(x) = 7x - 2
A. 
B. {x ? x is a real number and x ? 3}
C. 
D. {x ? x is a real number}
Convert the rectangular coordinates of the point to polar coordinates (r, ?) with r > 0 and 0 ? ? < 2?.(-3, -3
)
A. 
B. 
C. 
D. 
Solve the problem. Round to two decimal places unless otherwise indicated.If the average cost per unit C(x) to produce x units of plywood is given by C(x) = 
, what is the unit cost for 20 units?
A. $1.50 B. $15.00 C. $18.00 D. $45.00