Answer:
i donk know and i dont understand the question
Step-by-step explanation:
Answer:
2/π ≈ 0.637 m/s
Step-by-step explanation:
The rate of change of area with respect to time is ...
A = πr²
dA/dt = 2πr·dr/dt
Filling in given values in the above equations, we can find r and dr/dt.
25π = πr² ⇒ r = 5
20 = 2π·5·dr/dt
dr/dt = 20/(10π) = 2/π . . . . meters per second
The radius is increasing at the rate of 2/π ≈ 0.637 meters per second.
Answer:
y = 3x -13
Step-by-step explanation:
y = 3x + 7
-1 = 3(4) + b
-1 = 12 + b
-13 = b
y = 3x -13
Answer:
5.93 × 10-5
Step-by-step explanation:
Assuming that they both work at the same pace together 66/2=33*3=99 to get the whole house done because she takes 3 times as long and has to pick up the slack when cara is gone i think at least it sounds logical in my mind but maybe somebody thinks different but final answer
t=99 hours
