The equation of a circle with center (h, k) and radius r is
(x - h)^2 + (y - k)^2 = r^2
A diameter of 18 means a radius of 9.
(x + 3)^2 + (y - 5)^2 = 81
Answer:
9) 3rd side = 2x+2y
10) 5a^2 + 6a - 3
Step-by-step explanation:
9) 10x+5y - ( 3x+ 4y) = 7x + y
7x + y - ( 5x - y ) = 2x + 2y
10)
Answer:
-68.3012701892
Step-by-step explanation:
I put it in calculaotor
The distance formula is d=√(x2-x1)² + (y2-y1)²
So... d =8.06226
Hope this helps
