X²+20-20=4-20
x²=-16
Take the square roots of each side: x=the square root of -16
You cannot do this so there is no solution
However, I'm not perfectly sure, so wait for other answers just in case
If it’s a half circle, the central angle should be 180 degrees.
Answer:
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Step-by-step explanation:
I got 3x.....because not all have a y in common