Josh has 12 pencils. He gives some of them to his friends. Now he has 7 pencils left. How many pencils did Josh give to his friends?

Find the cosine function that is represented in the graph.

The graph shown is the graph of which function?

Use the formulas a = x 2 – y 2, b = 2xy, c = x 2 + y 2 to answer this question. one leg of a right triangle has length 11 and all sides are whole numbers. find the lengths of the other two sides. the other leg = a0 and the hypotenuse = a1