Rcises l when does az +bz + c=0 represent a line?

Norma has an a-frame cabin. the back is shown below. how many square feet of paint will she need to cover the back of the cabin? explain how you found the answer.

1. what is the phythaforean theorem? 2.what do we use it for? 1.what is the distance formula ? 2.what do we use it for?

Find the number of positive three-digit even integers whose digits are among 9, 8, 7,5, 3, and 1.