Z varies jointly as x and y. If z=3 when x=3 and y=15, find z when x=6 and y=9

If the endpoints of the diameter of a circle are (8, 6) and (2,0), what is the standard form equation of the circle? a) (x + 5)2 + (y + 3)2 = 18 (x + 5)2 + (y + 3)2 = 3.72 (x - 5)2 + (y - 3)2 = 18 d) (x - 5)2 + (y - 3)2 = 32

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

Solving algebraic equations 2m+3=11