Answer:
u
Step-by-step explanation:
You can solve this problem by following the steps below:
1. You need the formula for calculate the area of a circle, which is:
A=πr²
"A" is the area of the circle
"r" is the radius of the circle (r=35 centimeters).
2. Now, you must take the derivative. Then, the rate of change of the area is:
dA/dt=(2πr)(dr/dt)
3. The radius of change of the radius "r" with respect to time, is:
dr/dt=6 cm/min
4. Then, you have:
dA/dt=(2πr)(dr/dt)
dA/dt=2π(35 cm)(6 cm/min)
dA/dt=420π cm²/min
Answer:
50
Step-by-step explanation:
Answer:
102 sq. ft.
Step-by-step explanation:
In order to find the side lengths, we divide 1604 by 2. Since it's a square, each side is the same length. Area is length times width so we only need two sides.
1604÷2=102
7.50 * 3 = 22.50
305 - 22.50 = 282.50
At the end of 3 months, Javiers account would be $282.50