How do you find the circumference of a circle? What is the formula?
1 answer:
Answer:
or
Step-by-step explanation:
To find the circumference, you must first find either the diameter or the radius.
To find the diameter, you can multiply the radius twice.
To find the radius, you can divide the diameter by 2.
Once you have the diameter, you then multiply it by pi, also known as 3.14.
OR
Once you have the radius, you them multiply it by pi, also known as 3.14, and then multiply your product by 2.
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Answer:
Step-by-step explanation:
Length = x
width = x - 7
height = x - 10
volume = 600 in^3
Volume = L * w * h
600 = x * (x - 7)*(x - 10)
600 = x * (x^2 - 17x + 70)
600 = x^3 - 17x^2 + 70x
x^3 - 17x^2 + 70x - 600 = 0
There is a genius somewhere that could solve this using algebra. The rest of us have 2 choices. We can graph it (see below) or we could use a program that solves it for us. I'll do both for you.
a = 1
b = - 17
c = 70
d = - 600
There is only 1 real solution: x = 15
L = 15
w = 8
h = 5
That has to be one of the ugliest graphs made. It does into the hundreds of thousands and it still looks like a straight line. Trust me. It's not.
