Answer:
um... okie
Step-by-step explanation:
Answer:
i think E.942 cm³ is answer
Volume = πr²h
so
3.14×5×5×12
= 942 cm²
Answer:36π squared feet
Step-by-step explanation:
Diameter=12
Radius=diameter/2
Radius=12/2
Radius=6 feet
Area of circle=π x Radius x Radius
Area of circle=π x 6 x 6
Area of circle=36π
This is esay to do when you realize the the speed of mowing is addtive. This is if John mows at 1 lawn / (2/3) hour and Gerge mows at 1 lawn / 1hour, the total speed of mowing is:
1 / (2/3) + 1 = 3/2 + 1 = 5/2
=> 5/2 of lawn per hour
Now, the time is calcualted as the amount of lawn divided by the speed:
1 lawn / (5/2 lawn/hour) = 2/5 hour.
Answer: 2/5 of an hour.
Option C: center (1,2) and radius sqrt 5
