Answer:
8 + 18+ 28+ 38+ 48= 140
Step-by-step explanation:
3r+n2−r+5−2n+2<span />=3r+n2+−r+5+−2n+2=3r+n2+−r+5+−2n+2<span />=(n2)+(−2n)+(3r+−r)+(5+2)<span />=n2+−2n+2r+7<span /><span />
=n2−2n+2r+7
If a root is a+√b then another is a-√b because of quadatic formula
r2=1-√5
Answer:
Plumber: 13 hours
Plumbing service: 10
Step-by-step explanation:
What you have to find is LCM(least common multiple in order to find the lcm all you have to do is list all the multiples and find their common multiple.
Answer:
The volume of the water in the fishbowl is equal to
or ![2,144.6\ in^{3}](https://tex.z-dn.net/?f=2%2C144.6%5C%20in%5E%7B3%7D)
Step-by-step explanation:
we know that
The volume of the sphere (a fishbowl) is equal to
![V=\frac{4}{3}\pi r^{3}](https://tex.z-dn.net/?f=V%3D%5Cfrac%7B4%7D%7B3%7D%5Cpi%20r%5E%7B3%7D)
In this problem we have
----> the radius is half the diameter
substitute
![V=\frac{4}{3}\pi (8^{3})=\frac{2,048}{3}\pi\ in^{3}](https://tex.z-dn.net/?f=V%3D%5Cfrac%7B4%7D%7B3%7D%5Cpi%20%288%5E%7B3%7D%29%3D%5Cfrac%7B2%2C048%7D%7B3%7D%5Cpi%5C%20in%5E%7B3%7D)
convert to mixed number
![\frac{2,048}{3}\pi\ in^{3}=\pi (\frac{2,046}{3}+\frac{2}{3})=(682\frac{2}{3})\pi\ in^{3}](https://tex.z-dn.net/?f=%5Cfrac%7B2%2C048%7D%7B3%7D%5Cpi%5C%20in%5E%7B3%7D%3D%5Cpi%20%28%5Cfrac%7B2%2C046%7D%7B3%7D%2B%5Cfrac%7B2%7D%7B3%7D%29%3D%28682%5Cfrac%7B2%7D%7B3%7D%29%5Cpi%5C%20in%5E%7B3%7D)
![(3.14156)*(682\frac{2}{3})=2,144.6\ in^{3}](https://tex.z-dn.net/?f=%283.14156%29%2A%28682%5Cfrac%7B2%7D%7B3%7D%29%3D2%2C144.6%5C%20in%5E%7B3%7D)