<span>Center (1,-4) and radius =22
General form of a circle is
</span><span>(x -a)² + (y -b)² = r²
where a & b are the (x, y) points of the center
</span>
<span>(x -1)² + (y - - 4)² = 22²
Source:
http://1728.org/circle.htm
</span>
<span>a. only 2.5
By plugging in all three values, we will find that only 2.5 will create a correct solution of the choices.
</span>5.6+0.4(2.5) < 6(2.5) True
6.6 < 15
5.6+0.4(1) < 6(1) False
6 < 6
5.6+0.4(0.875) < 6(0.875) false
5.95<5.25
The area of the circle would be 16pi
It’s C. divide the diameter by 2 which is 12.2. then it’s pi • r^2. so 3.14 • 12.2^2 =467.36
Answer:
x=2 or 5/3
Step-by-step explanation:
the explanation is in the picture
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