Answer:
8 pi yd.
Step-by-step explanation:
The circumference of a circle can be calculated as follows:
c = ![2 \cdot \pi \cdot r](https://tex.z-dn.net/?f=2%20%5Ccdot%20%5Cpi%20%5Ccdot%20r)
Where r is the radius of the circumference.
So in our case:
c =
yd.
Answer:
see below
Step-by-step explanation:
Since 2x appears on the left side of both equations, that term can be eliminated by subtraction, which is what the first choice suggests.
The result will be ...
3y = 7 -4y +5 . . . . . . . . . second equation subtracted from the first
7y = 12 . . . . . . add 4y
y = 12/7 . . . . . . divide by 7
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However, the fact that 2x is by itself on the left side of the second equation suggest that <em>substitution</em> may also be a good option. Perhaps an equally good first step is to use the expression in the second equation to substitute for 2x in the first:
(4y -5) +3y = 7
Either way, the resulting equation is 2-step.
7y = 12 . . . add 5
y = 12/7 . . . divide by 7
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The other suggested "first steps" do nothing useful.
Answer:
(2/4)/(4/4) = 0.5 or 2/4
Step-by-step explanation:
Answer:
100 degrees
Step-by-step explanation:
It's going through 140 and 40, 180 - 40 = 140
180 cause a flat line is 180 degrees