The answer is actually 42. Not 20.
You replace each x with 3
5(3)+9(3)
That 3 right next to the five means you multiply not add.
15+27=42
Brainliest my answer if it helps you out?
6x^2/2x^2
.......................
Here is one: 3917y + 782 = 71288
Answer:
The volume of tank is calculated by the equation
.
Step-by-step explanation:
It is given that the height of the cylindrical tank is 15 feet and the radius of the cylindrical tank is 10 feet.
The formula to find the volume of cylinder is



Therefore the volume of tank is calculated by the equation
and the volume of tank is 4712.39 feet³.