To determine how many numbers of reservoirs to reserve 90000, we first need to determine the capacity of each reservoirs (how much liquid one reservoir can contain) - which is equal to the volume.

The formula to calculate the volume of a circular cylinder is:

- Volume of cylinder = Area of base x Height

The base of this cylinder is a circle with radius equal to 4 feet. ( $\pi = 3.14$ )

=> The are of the base is = $\pi *radius^{2}$ = 3.14 x 4^2 = 50.24 feet square

=> The volume of cylinder = Area of base x Height

=> The volume of one cylinder = 50.24 x 10.5 = 527.52 Cubic foot

We have: 1 cubic foot = 28.317 liters

=> 1 liter = 1/28.317 cubic foot

=> 90000 liters equal to: 90000/28.317 = 3,178.303 cubic foot

The number of reservoirs needed to contain 90000 liters of liquid is:

3,178.303/527.52 = 6.025

=> So that it needs 7 reservoirs to store all 90000 liters of liquid.

5 0

3 years ago

A kite is flying 11 ft off the ground. Its line is pulled taut and casts a 9 - ft shadow. Find the length of the line. If necess

jolli1 [7]

I believe the answer would be 6.3 feet if you use Pythagorean theorem

8 0

3 years ago

Please help me with this question Screenshot is included.

UNO [17]

Answer:

Step-by-step explanation:

3 0

3 years ago