Find the requested angle.The supplement of 20°.
A. 250°
B. 340°
C. 70°
D. 160°
Answer: D
Mathematics
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Solve the problem.Before exercising, an athlete measures her air flow and obtains a = 0.65 sin 
where a is measured in liters per second and t is the time in seconds. If a > 0, the athlete is inhaling; if a < 0, the athlete is exhaling. The time to complete one complete inhalation/exhalation sequence is a respiratory cycle. What is the amplitude? What is the period? What is the respiratory cycle? Graph a over two periods beginning at t = 0. 
What will be an ideal response?
Mathematics
Simplify.-(-|-3|)
A. 1 B. -1 C. 3 D. -3
Mathematics
Simplify the expression.4x + x
A. 4x + 1 B. 4x C. 5x D. 9x
Mathematics
Use the quadratic formula to solve the quadratic equation.m2 = 9m - 2
A. m = 
B. m = 
C. m = 
D. m = 
Mathematics