In the right triangle shown m angle A =45° and AB=12 how long is BC?

In triangle abc, the length of side ab is 12 cm, the length of side bc is 5 cm, and the length of side ca is 9 cm. find the measure of angle a using the law of cosines.

What is the slope simplify your answer and write it as a proper fraction, improper fraction, or integer

Write the fraction 9/50 as a decimal if needed round to the nearest hundredth