Circumference = (π) x (diameter)
Circumference = 8π
(π) x (diameter) = 8π
Diameter = 8
Radius = 4
Area = π x (Radius)²
Area = π x (4)²
Area = π x (16) = <u>50.27 units²</u> (rounded)
Answer:
all work is shown and pictured
Answer: f(n) + g(n) = -2n^3 + 3n^2 - 2n - 4
Explanation:
f(n) + g(n) = (-2n^3 + 3n^2) + (-2n - 4)
f(n) + g(n) = -2n^3 + 3n^2 - 2n - 4
Answer:
The total volume of the water in the tank after 20 minutes = 1220 gallons
Step-by-step explanation:
Rate of water pumped into the tank r (t) = 30 (1 - )
Initial volume of water in the tank = 800 gallons
The water in the tank after 20 minutes = Initial volume of water in the tank + Volume of water being pumped in the tank
=
Where a = 0 , b = 20
Put the value of r (t) in above equation we get
=
=
=
= 420 gallon
Now, total volume in the tank
Therefore the total volume of the water in the tank after 20 minutes = 1220 gallons
Answer:
A rectangular prism made up of unit cubes. The front face shows 9 cubes: 3 rows and 3 columns. The top face of the cube shows 6 cubes: 2 rows and 3 columns.
Step-by-step explanation:
To find the volume of a rectangular prism, multiply its 3 dimensions: length x width x height. The volume is expressed in cubic units.