To find the maximum velocity you have to differentiate the function respect to r.
v = k(R - r)r^2 = kRr^2 - krr^2 = kRr^2 - kr^3
k and R are constants.
=> v' = 2kRr - 3kr^2 = kr(2R - 3r)
maximum velocity => v' = 0 => kr(2R - 3r) = 0
r = 0 or 2R - 3r = 0 => r = 2R / 3
Answer: r = 2R / 3
The volume that could belong to a cube with a side length that is an integer is 64 cubic inches.
Answer:
38.70 miles
Step-by-step explanation:
Each week, Reuben jogs ...
(2.25 mi)(1 +1 +1 +1 +1 +1.8 +1.8) = (2.25 mi)(8.6)
Then in 2 weeks, he jogs ...
2(2.25)(8.6) mi = 38.70 mi
Reuben jogs 38.70 miles in 2 full weeks.
Answer:
Step-by-step explanation:
5
Answer:
64
Step-by-step explanation:
We can use the product rule of counting to answer this:
There are 4 possibilities for the 1st digit
There are 4 possibilities for the 2nd digit
There are 4 possibilities for the 3rd digit
So we use the product rule of counting to give us:
4×4×4=64
