Answer:
7 units
Step-by-step explanation:
Distance between 2 points
=
Thus, distance PQ

Or you could simply take 8-1= 7 since both points have the same x-coordinate. Thus, PQ is a vertical line and the distance between them is due to the difference in their y-coordinate.
Answer:
1. An algebraic expression of three non-zero terms only is called a trinomial.
2. like terms
3. x=49
4. positive
Answer:
18
Step-by-step explanation:
half of 36 is 18
AB = 24
BC = 45
AC = 51
cos C = adjacent / hypotenuse
cos C = BC / AC
cos C = 45/51