After exercising for a few minutes, a person has a respiratory cycle for which the velocity of airflow is approximated by
?
,
?
where t is the time (in seconds).
(Inhalation occurs when v> 0 and exhalation occurs when v< 0.)
?
Find the number of cycles per minute.
?
A. 12 cycles/min
B. 10 cycles/min
C. 15 cycles/min
D. 13 cycles/min
E. 11 cycles/min
Answer: B
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Complete the table. Object Liters (L) Milliliters (mL) Cubic Centimeters (cc) Cubic Centimeters (cm3)Capacity of water tank 1495
A.
| Object | Liters (L) | Milliliters (mL) | Cubic Centimeters (cc) | Cubic Centimeters (cm3) |
| Capacity of water tank | 14.95 | 1495 | 1495 | 1495 |
B.
| Object | Liters (L) | Milliliters (mL) | Cubic Centimeters (cc) | Cubic Centimeters (cm3) |
| Capacity of water tank | 1,495,000 | 1495 | 1495 | 1495 |
C.
| Object | Liters (L) | Milliliters (mL) | Cubic Centimeters (cc) | Cubic Centimeters (cm3) |
| Capacity of water tank | 1.495 | 149,500 | 1495 | 1495 |
D.
| Object | Liters (L) | Milliliters (mL) | Cubic Centimeters (cc) | Cubic Centimeters (cm3) |
| Capacity of water tank | 1.495 | 1495 | 1495 | 1495 |
Solve the problem.Find the skid distance after braking hard at a speed of 75 miles per hour. Use the formula 
where D represents the skid distance in feet on asphalt and S represents the speed of the car in miles per hour.
A. 918.37 ft B. 229.59 ft C. 42.87 ft D. 459.18 ft
Solve the problem.The number of VHS movie rentals has declined since the year 2000 due to the popularity of DVDs, as the following table shows. The exponential regression equation was found to be 
where x represents the number of years since 2000. According to the exponential model, what is the decay rate for the number of VHS rentals?
A. 1.8209 B. -8.92 C. 0.1791 D. 0.8209
Determine algebraically whether the graph is symmetric with respect to the x-axis, the y-axis, and the origin.x2 + y2 = 9
A. y-axis only B. x-axis, y-axis, origin C. Origin only D. x-axis only