He has 30 gallons left
5/8 = 50/80
80-50=30
Answer:
18
Step-by-step explanation:
Answer:
72°
Step-by-step explanation:
Given that the radius(r) of the circle is 10 units and the length of arc ABC is 16π
The length of arc ABC = ![\frac{\theta}{360}*2\pi r](https://tex.z-dn.net/?f=%5Cfrac%7B%5Ctheta%7D%7B360%7D%2A2%5Cpi%20r)
Where θ is the central angle in degrees.
Since the length of arc ABC is 16π,
![16\pi=\frac{\theta}{360}*2\pi r\\16\pi=\frac{\theta}{360}*2\pi *10\\\theta=\frac{16\pi *360}{2 \pi *10} \\\theta=288^0](https://tex.z-dn.net/?f=16%5Cpi%3D%5Cfrac%7B%5Ctheta%7D%7B360%7D%2A2%5Cpi%20r%5C%5C16%5Cpi%3D%5Cfrac%7B%5Ctheta%7D%7B360%7D%2A2%5Cpi%20%2A10%5C%5C%5Ctheta%3D%5Cfrac%7B16%5Cpi%20%2A360%7D%7B2%20%5Cpi%20%2A10%7D%20%5C%5C%5Ctheta%3D288%5E0)
The angle in a circle = 360°, therefore:
Central angle for arc AB (θ) = 360 - Central angle for arc ABC = 360 - 288 = 72°
Therefore the arc measure of arc AB is 72°
Irrational numbers are nonrepeating decimals like 0.1257486...
sqrt(150) is irrational gives nonrepeating decimal
12^2 = 144
sqrt(625) = 25
sqrt(49) .. sqrt(50) .. sqrt(64)
7 .. sqrt(50) .. 8
in between 7 and 8