11. line n passes through points (7,12) and (4, 15). what is the slope of a line that
is perpendicular to line n?

It is 1.

Step-by-step explanation:

The slope of line n  = rise / run

= (15 - 12) / (4 - 7)

= 3 / -3.

So the slope m = -1.

So the slope of the line perpendicular to n is  -1 /m = -1 / -1  = 1.

answer: the anser is 3

step-by-step explanation:

c- 2o is equal to 9

4 and 5)16.97 or 12√2

6)15.59 or 9√3

7)y = 15.59 or 9√3     x =27

8)17.80