Answer:
10.7cm
Step-by-step explanation:
x^2= 115
x = √115
x = 10.7
Answer:
You need to add 30+21=51 Students
1/7 is equivalent to... 2/14, 4/28, & 5/35 :)
Hey there,
Put the equation into the circle equation [ (x - h)² + (y - k)² = r² ].
x² + y² + 4x + 8y = -11
(x² + 4x) + (y² + 8y) = -11
(x + 2)² + (y + 4)² = 9
If that is confusing, you can always rewrite it to show exactly what you need in the circle equation.
(x - (-2))² + (y - (-4))² = 3²
Therefore, using the circle equation we can see that the center is at the point (-2, -4) and the radius is 3.
Best of Luck!