9 and 7/8 as a precent is 0.875 or 87%
$120 USD is equivalent to £84.55
195 divided by 20 = $9.75
Mark brainliest please and thank you :)
We know that:
is an equation of a circle.
When we substitute x and y (from the pairs we have), we'll get a system of equations:
and all we have to do is solve it for a, b and r.
There will be:
From equations (II) and (III) we have:
and from (I) and (II):
Now we can easly calculate a and b:
Finally we calculate
:
And the equation of the circle is: