Yes this is very reasonable
On the graph point d is: (4,-9)
Answer:
the circumstance is 78.54
8x-10=3x+90
8x-3x= 90+10
5x=100 divide by 5x on each side
X=20
B=3(20)+90= 150
Answers: X=20
Angel B is 150°
-5 + 6d + 3 = 34
-2+6d=34
Add 2 to both sides
6d=36
Divide both sides by 6
6d/6=36/6
d=6
Check:
-5 + 6d + 3 = 34
Substitute d=6 into the equation
-5+6(6)+3=34
-5+36+3=34
31+3=34
34=34
Hope this helps! :)