$center\ of\ a\ circle:(a;\ b)\\\\radius:r\\\\(x-a)^2+(y-b)^2=r^2\\\\========================\\\\(h;\ 7);\ r=10\\\\(x-h)^2+(y-7)^2=10^2\\\\========================$

$The\ circle\ passes\ throught\ (3;-1).\\\\Substitute\ x=3\ and\ y=-1:\\\\(3-h)^2+(-1-7)^2=100\\\\(3-h)^2+(-8)^2=100\\\\(3-h)^2+64=100\ \ \ /-64\\\\(3-h)^2=36\iff3-h=\pm\sqrt{36}\\\\3-h=-6\ or\ 3-h=6\\-h=-6-3\ or\ -h=6-3\\-h=-9\ or\ -h=3\\h=9\ or\ h=-3\\\\Answer:h=9\ or\ h=-3$

6 0

3 years ago

Read 2 more answers

What is the range of this data based on the dot plot?

AleksandrR [38]

182=288 so 74 76 78 80 82 ×2 == 76 78 80 82 84 ans the range is 2920

5 0

3 years ago

Is 5/7 greater than or less than 1/3

vagabundo [1.1K]

The common denominator is 21 so 5/7 would be 15/21 and 1/3 would be 7/21 so 5/7 is greater than 1/3

5 0

3 years ago

Read 2 more answers