What is the slope of any line perpendicular to the graph shown(Type your answer as a fraction in simplest form)

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?

Empty box + box + empty box fill in the box is equal to 30 how

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