List the intercepts, test for symmetry and graph

x^2=y

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 is greater, 7 p 5 or 7 c 5? 7p5 7c5

Alex measured the length of an item to be 3.7 cm. the actual length is 3.5 cm. what is alex’s percent error?