Answer:
3. KC
Step-by-step explanation:
A chord is a line drawn from one point on the circle to another point on the circle.
In circle K, points A, B, and C lie on the circle. From the attached diagram, KC would not be a chord of the circle as it does not satisfy the rule for chords.
In fact, KC would be a radius of the circle.
We have the equation:
So then we need to distribute -7p to the parentheses:
Then we need to set the equation equal to 0, so we must subtract 21 on both sides:
Then we need to factor this. So we end up with:
This is as much as this can be factored, so <u>we cannot go any further</u>.
M = (N-2)/N
M = N² - 2N
N² - 2N - M = 0
To find N we need to use quadratic formula.
For our equation x = N, a=1, b= -2, c= -M