Point M is located in the third quadrant of the coordinate plane, as shown. Explain what you know about the signs of the coordinates of point M.

This is about circle theorems. someone asap : (

In trapezoid abcd, ac is a diagonal and ∠abc≅∠acd. find ac if the lengths of the bases bc and ad are 12m and 27m respectively.

Delbert keeps track of total of the total number of points he earns on homework assignments, each of which is worth 60 points. at the end of the semester he has 810 points. write an equation for delbert’s average homework score a in terms of the number of assignments n.