Can you help 40 points hurry

The center of the circumscribed circle lies on line segment and the longest side of the triangle is equal to the of the circle.

Which of the following pair(s) of circles have las a common external tangent? select all that apply. a and b a and c b and c

4. (10.03 mc) the equation of line cd is y = −2x − 2. write an equation of a line parallel to line cd in slope-intercept form that contains point (4, 5). (4 points) y = −2x + 13 y = negative 1 over 2 x + 7 y = negative 1 over 2 x + 3 − 2x − 3