The circumference of a circle radius r is give

If tan2a=cot(a+60), find the value of a, where 2a is an acute angle

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

Tiene pendiente -4 y pasa por el punto (-3,-2) encuentre la ecuación de la recta