Answer:
step by step
Step-by-step explanation:
where
r = radius
h= height
Area of a cylinder = 2πrh+2πr^2
Area of a cylinder = 2π8(3)+2π8^2
Area of a cylinder = 176π = 552.92
Area of a hemisphere= 3r2π
Area of a hemisphere= 3(2)2π
Area of a hemisphere= 12π = 37.699111843
Area of the cylinder in this problem
176π - 12π = 164π
Answer:
y=3x-1
Step-by-step explanation:
Answer:
2.5 gallons
Step-by-step explanation:
Make the denominators of the fractions the same and combine them
![\frac{1}{3} =\frac{2}{6}](https://tex.z-dn.net/?f=%5Cfrac%7B1%7D%7B3%7D%20%3D%5Cfrac%7B2%7D%7B6%7D)
![\frac{2}{6} +\frac{1}{6} =\frac{3}{6}](https://tex.z-dn.net/?f=%5Cfrac%7B2%7D%7B6%7D%20%2B%5Cfrac%7B1%7D%7B6%7D%20%3D%5Cfrac%7B3%7D%7B6%7D)
Then simplify the fraction
![\frac{3}{6} =\frac{1}{2}](https://tex.z-dn.net/?f=%5Cfrac%7B3%7D%7B6%7D%20%3D%5Cfrac%7B1%7D%7B2%7D)
Then subtract how many gallons you have from how many you want
![3 -\frac{1}{2} = 2\frac{1}{2}](https://tex.z-dn.net/?f=3%20-%5Cfrac%7B1%7D%7B2%7D%20%3D%202%5Cfrac%7B1%7D%7B2%7D)
You will need 2.5 gallons to make 3 gallons
Your answer to this is 200
The answer to 75 squared is 5,625.