what is the equation of the circle with center (0,0) the passes through the point (5,-5). please help
1 answer:
<h3>Answer:</h3>
x² + y² = 50
<h3>Step-by-step explanation:</h3>The circle centered at (h, k) with radius r has equation ...
... (x -h)² + (y -k)² = r²
You have (h, k) = (0, 0), so all we need to do is find r². We can do that by choosing r² so that the equation is true at the given point.
... x² + y² = (5)² + (-5)² = 25 + 25 = 50
Your equation is x² + y² = 50.
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First compute the whole number of the possibilities :
10*9=90.
Compute the number of favorable possibilities:
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we pick 5. So the number of the favorable possibilities is 5.
Now we compute the probability like this:
10*9=90.
Compute the number of favorable possibilities:
There is 5 even numbers. Once we pick an even number,
we pick 5. So the number of the favorable possibilities is 5.
Now we compute the probability like this: