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 :)
Answer:
40m^2 152.6m^2
Step-by-step explanation:
Answer:
i got 96
Step-by-step explanation:
you have to find the unit rate for 1 driveway and times that by 12
32 divided by 4 is 8
8 x 12 is 96
hope this helps :)
Answer:
yes it is
Step-by-step explanation:
anything took to zerk is zero, 1 is higher thsn zero
Answer:
10.67% increase
Step-by-step explanation:
We can find percent increase with (difference/original) x 100
7.47 - 6.75
= 0.72 (difference)
(0.72/6.75) x 100
= 10.67% increase