Find the exact value of cos a, given that sin a= 8/11 and
a is in quadrant i.
cos a= ?
(simplify your answer. type an exact answer, using radicals as needed.)

Val and tony get paid per project. val is paid a project fee of $44 plus $12 per hour. tony is paid a project fee of $35 plus $15 per hour. write an expression to represent how much a company will pay to hire both to work the same number of hours on a project.