Title: Related Rates Pre-Video Questions
Course: Calculus Videos Project > Section: Related Rates

Q: A right triangle has one leg of constant length 7cm while the other leg is growing at a constant rate of 2 cm/sec as shown in the diagram below. The area of the triangle is given by the formula , where is the length of the base of the triangle and is the height of the triangle. In order to determine how fast is its area changing at the instant that the other leg has length b=10 cm, which of the following formulas would you use?
A: (a choice with no text)

Q: An airplane is climbing at a rate of 750 feet per minute. As the plane rises, the air temperature outside is falling at a rate of 0.002 degrees per foot. Let be the altitude of the airplane Let be the temperature outside the plane. How quickly is the temperature falling per minute?
- 0.002 + 750 degrees/minute
- 0.002 \(\cdot\) 750 degrees/minute
- degrees/minute
- degrees/minute
- 0.002 - 750 degrees/minute
- 750 - 0.002 degrees/minute
- You need to know the current altitude of the plane and the current temperature
A: 0.002 \(\cdot\) 750 degrees/minute

Q: A square's side length, , is increasing at a rate of 3 inches per second, as shown below. How quickly is its area increasing?
A: (a choice with no text)