Answer:
21 in
Step-by-step explanation:
by the Pythagorean theorem we have

notice that the 841 and the 400 don't go squared because they already squared!
Answer:
-7/8
Step-by-step explanation:
If two lines are parallel, they have the same slope. The slope of p is -7/8 (y=mx+b), so the slope of q is also -7/8.
Answer:
Rad 68
Step-by-step explanation:
84- 4^2=68