Answer:
i believe the answer is 9.5
Step-by-step explanation:
cos60 = c / 19 = 9.5
I solved with addition elimination, and matrices elimination and received the same answer. (0,0,-3) I hope that helps.
b
a and d should not be considered bc it is not logically correct. c is eliminated because that may not always be the case. therefore it should be b.
From corresponding angles theorem, we can see the 2 angles are equal.
16x+13=18x-1
2x=14
x=7
Done!
Any questions just leave them in the comments and I will answer.
