The notation V(r) actually gives the volume of air inside the basketball. V(r) is volume as a function of radius, r It can be written as: V(r) = 4/3πr³ So, for any value of r, we can get the volume V. For, example, when r = 7cm we can say; V(7) = 4/3 x 22/7 x 7³ = 1437.33 cm³
At 55 miles per hour, he travels 55 miles in every hour. So, in 2 hours he goes 55 x 2 miles, or 110 miles.
In the same way: at 70 miles per hour he goes 70 miles in every hour, and he only travels for an hour, so he goes 70 miles.
Going 50 mph (miles per hour) for 2 hours, he travels 50 x 2 miles or 100 miles.
Add these numbers up: 110+70+100 = 280.
Answer:
Step-by-step explanation:
6x≤-37
x≤-37/6
x≤ -6 1/6
Answer:
Step-by-step explanation:
We need to write 
as a single logarithm.
We know that
Therefore we have:
→ 
→
The solution is:
5.75/20 = 0.2875
0.2875 meters or 28.75 cm per piece.
