Can someone figure this out? I keep mixing up the radians on the unit circle and can’t for the life of me figure this one out. Thanks!

Every rhombus is a square. true false

Look at the following graph of the given equation. determine whether the equation is a function. explain why or why not.

Ametal rod needs to be 9 feet and 5.5 inches in length. the sections of the poles being used are each 1 foot and 10.5 inches long. how many 1ft 10.5in sections would be needed to complete the 9ft 5.5in metal rod? and how many inches of material will be left?