The unknown angle would be 79 degreese.
Graph B would be the correct answer
He must get a 65 as a minimum grade on his third test to get an average of 70.
Equation is
85 + 60 + x
------------------- greater than or equal to 70
3
(84x - 69y) - (65x + 34y)
Remove the parenthesis and combine the like terms:
84x - 65x = 19x
-69y - 34y = -103y
Combine for final answer:
19x -103y
The number of intersections is the number of solutions
we can see they are paralell so they will never intersect
0
C is the answer
