Answer:

Explanation:
If a side has a bracket [] then it is less than or equal to, meaning that it can reach that exact number.
However, if a side has a parentheses () then it is simply less than. It cannot be that exact number, but it can be even slightly less than that number.
You substitute the y from the second eqaution to the y in the first equation
Answer:
38
Step-by-step explanation:
Answer:
The radius of the base is 
Step-by-step explanation:
we know that
The volume of a cone is equal to

we have



substitute and solve for r


![r^{2}=864/[(3.14)(7)]](https://tex.z-dn.net/?f=r%5E%7B2%7D%3D864%2F%5B%283.14%29%287%29%5D)

Answer:
B
Step-by-step explanation:
120 degrees is 1/3 of the circumference of a circle.
So the formula is 2 * pi * r * theta / 360
Arc length = 2* 12 * 3.14 * 120/360
Arc length =25.12 feet