Which equation can be solved to find one of the missing side lengths in the triangle?
60°
12
cos(60°) = 12/a
cos(609) = 12/b
cos(60°) = b/a
cos(60) = a/12

Three students each examine the system of linear equations shown. 8x + 4y = 16 8x + 2y = 8 caleb says there is exactly one solution. jeremy says there is no solution. kim says there are infinitely many solutions. which student is correct? provide mathematical reasoning to support your answer. answer in complete sentences. : d