Solve the system of equations below then check the solution both algebraically and graphically provide evidence 4x-2y=-2
3x+2y=-12

For one history test, keith had to answer 40 questions. of these 40 questions, keith answered 28 of them correctly. what percent did keith get on his history test? round your answer to the nearest tenth if necessary

In the diagram, the ratio of ab to ae is (1/2) . what is the ratio of the length of to the length of ?

Find the cosine function that is represented in the graph.