"2 times pi times r", which can be written as "2*pi*r", represents the circumference of a circle. This is the distance around the circle (aka perimeter)
r is the radius of the circle
if you know the diameter then you can divide the diameter in half to get the radius (example: diameter is 10 so the radius is 5)
The decimal point should move all the way behind '4'. Therefore the answer is 8714.0
Answer:
x=2.345208,−2.345208
Step-by-step explanation:
x²+4=3x²−7
Answer:
see below...
Step-by-step explanation:
-12=constant [# doesn't change]
4=degree [exponent]
-6m= term [variable or 3]
9=coefficient [first #]
92, subtract them
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