Let’s see! Substituting 3 for x and -1 for y:
(3 + 1)^2 + (-1 - 1)^2 = 16
4^2 + (-2)^2 = 16
16 + 4 = 16
20 = 16
20 is clearly not equal to 16, so we know the point (3, -1) can’t lie on that circle.
Answer:
9 cm
Step-by-step explanation:
Circumference of a circle is given by
C = pi * 2 *r
18 pi = pi * 2 *r
Divide each side by pi
18 = 2 r
Divide each side by 2
18/2 = 2r/2
9 = r
The radius is 9 cm
Answer:
See below
Step-by-step explanation:
Using triangle side rule : The sum of any two sides must be greater than the third side
.5<x<16.5