Simplify each side of the equation and then solve. Check your solution.-15 = 6x - 7x
A. 0
B. -1
C. 15
D. -15
Answer: C
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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?
Find the amount of the ordinary annuity. Round to the nearest cent.R = $6400, 5% interest compounded quarterly for 11 years
A. $372,405.36 B. $361,486.77 C. $90,923.44 D. $884,405.36
Add.508 + 85,281
A. 84,789 B. 90,361 C. 87,219 D. 85,789
Add. Do not use a number line except as a check.-3 + (-9)
A. -6 B. -12 C. 12 D. 6