Answer:
D) 191
Step-by-step explanation:
The entire circle is 254.5, calculated by using this formula
Only 3/4 of the circle is needed for the area, however, so you multiply your area by 0.75
The Browns are moving, so Mrs. Brown is helping her daughter Robyn pack up her stuffed animals in boxes. If Robyn has 12 stuffed
2 answers:
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Answer:
Step-by-step explanation:
We have been given that when a cylindrical tank is filled with water at a rate of 22 cubic meters per hour, the level of water in the tank rises at a rate of 0.7 meters per hour. We are asked to find the approximate radius of tank in meters.
We will use volume of cylinder formula to solve our given problem as:
, where,
r = Radius,
h = Height of cylinder.
Since the level of water in the tank rises at a rate of 0.7 meters per hour, so height of cylinder would be meters at
.
Upon substituting these values in above formula, we will get:
Now, we will take positive square root of both sides as radius cannot be negative.
Therefore, radius of tank would be approximately square root of 10 m.