Can anyone explain to me what this is asking/how to do this? I think it's for the summation formula
et/?f=S_%7Bn%7D%20%3Dn%28%5Cfrac%7Ba_%7B1%7D%2Ba_%7Bn%7D%20%20%7D%7B2%7D%29" id="TexFormula1" title="S_{n} =n(\frac{a_{1}+a_{n} }{2})" alt="S_{n} =n(\frac{a_{1}+a_{n} }{2})" align="absmiddle" class="latex-formula"> but if I'm given a1, an, and n, what are the other numbers for?
1 answer:
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Answer:
Step-by-step explanation:
<u>1) Find the radius</u>
We can do this by using the distance equation with the centre (7,1) and the given point (-1,-5):
where the two points are
and
Plug in the points (7,1) and (-1,-5)
Therefore, the radius of the circle is 10 units.
<u>2) Plug the data into the equation of a circle</u>
Equation of a circle (when not centred at the origin):
where the centre is
and r is the radius
Plug in the centre (7,1) as (h,k)
Plug in the radius 10
I hope this helps!
To make m the subject, we must isolate it from everything else. To start, we can subtract x from both sides. This gives us:
-2m = p - x
After this, we divide both sides by -2 to finish isolating m. This would give us:
m =
Hope this helps! :)
-2m = p - x
After this, we divide both sides by -2 to finish isolating m. This would give us:
m =
Hope this helps! :)