Please explain in detail when answering, I'm super confused...
(12, 7pi/4)
Use the relationship x = r cos (theta); y = r sin (thetat) to express the x and y coordinates of this point. Write in (x, y).
(-2, 7pi/4)
Use the relationship x = r cos (theta); y = r sin (thetat) to express the x and y coordinates of this point. Write in (x, y).

Liz is shipping a package to her friend. the maximum weight of a medium flat-rate box is 20 pounds, including the box which weighs 6 ounces. write and solve an inequality to describe the possible weight in pounds, w, of the contents that liz will ship to her friend if she must use a medium flat-rate box. use the drop-down menus to explain your answer.

Collin did the work to see if 10 is a solution to the equation r/4=2.4

(a. s."similarity in right triangles"solve for xa.) 10b.) 20c.) 14.5d.) [tex] 6\sqrt{3} [/tex]