When a circular plate is heated in an oven, its radius increases at the rate of 0.01 cm/min. At what rate is the plate’s area in
creasing when the radius is 50cm? Be sure to include units in your answer.
1 answer:
Answer:
3.14 cm²/min
Step-by-step explanation:
rate of increasing of radius, dr/dt = 0.01 cm/min
r = 50 cm
Area of plate, A = πr²
rate of increase of area
dA/dt = 2πr dr/dt
dA/dt = 2 x 3.14 x 50 x 0.01
dA/dt = 3.14 cm²/min
Thus, the increase of rate of area is 3.14 cm²/min.
You might be interested in
Answer:
8
Step-by-step explanation:
the degree is the highest exponent value
Answer:
3(6+2) is the correct answer.
Answer:
9/2 feet
Step-by-step explanation:
This means that the total height is 6 * 3/4 or 18/4=9/2 of a foot.
C because that sign means lesser than or equal to 6
Answer:
C
Step-by-step explanation:
