Determine the missing coordinate of a point that lies on the graph of the unit circle, given the quadrant in which it is located.
; Quadrant IV
A. y = - 
B. y = - 
C. y = 
D. y = 
Answer: A
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Solve the problem.An office contains 1000 ft3 of air initially free of carbon monoxide. Starting at time = 0, cigarette smoke containing 4% carbon monoxide is blown into the room at the rate of 0.5 ft3/min. A ceiling fan keeps the air in the room well circulated and the air leaves the room at the same rate of 0.5ft3/min. Find the time when the concentration of carbon monoxide reaches 0.01%.
A. 7.01 min B. 5.01 min C. 6.01 min D. 8.01 min
Convert the angle to degrees, minutes, and seconds.136.16°
A. 136°9'36'' B. 136°10'36'' C. 136°9'16'' D. 136°7'16''
Solve the inequality and graph the solution set.|2x + 1| ? 11
A. 
B. 
C. 
D. 
Simplify.-2(8x - 3y - 5z - 2)
A. 6x - 5y - 7z - 4 B. -16x + 6y + 10z + 4 C. -16x - 6y + 10z - 4 D. 16x + 6y - 10z + 4