The distance formula is the square root of (X2 - X1)^2 + (y2 - y1)^2. Let D = y and c = x. Plug in the numbers now. Your equation is now the square root of ( -3 - (-5)) ^2 + (-2 - (-4))^2. Now complete it, your answer is 2.82...
Hope I’m not as late but the cost per topping is 80 cents.
These are all parts of circles.
A radius is the distance from the center of a circle to the edge.
A chord is a line segment from 2 different places on a circle.
A tangent is a line that touches the edge of a circle in only 1 place.
Inscribed angles are inside a circle and circumscribed angles are on the outside of a circle.
Recall that the characteristic polynomial of a 2x2 matrix

is

but

and

, so the characteristic polynomial for

is

We're given that the trace is 15 and determinant is 50, so the characteristic polynomial for the matrix in question is

and the eigenvalues are those

for which the characteristic polynomial evaluates to 0.