Rate it lol! This is an old pic btw like when i was 13 but just rate it anyways!

Find the length of the following tangent segments to the circles centered at o and o' whose radii are 5 and 3 respectively and the distance between o and o' is 12. what is the tangent segment of cd?

Which of these equations, when solved, gives a different value of x than the other three? a9.1 = -0.2x + 10 b10 = 9.1 + 0.2x c10 – 0.2x = 9.1 d9.1 – 10 = 0.2x

If f(x)=-x^2+6x-1 and g(x)=3x^2-4x-1,find(f+g)(x)