Find the distance between (2,1) to the line y=3x+5 in simplest radical form

Segment ab is shown on the graph. which shows how to find the x-coordinate of the point that will divide ab into a 2: 3 ratio using the formula

Which statement about the annual percentage rate (apr) is not true?

The length of the line segment joining the midpoints of sides ab and bc of the parallelogram abcd is 10. find the length of diagnol ac