Equation of a circle is (x-x1)+(y-y1)=r²
when x1 and y1 are the coordinates of the centre
So you can substitute the centre in to get (x-5)²+(y+9)²=r²
When you draw a diagram it's obvious the radius is 9
9²=81
Therefore equation is (x-5)²+(y+9)²=81
Any questions, just ask :)
5.88 / 3 = 1.96 per pound
original price - 1.21 per pound
Answer:
y=4
Step-by-step explanation:
512, the formula for volume is length x width x height :)
3/4. Keep change flip. 1/2 x 3/2 = 3/4