Sorry, I can’t help you. You forgot to include a photo of the diagram.
Answer:
up and down is positive, side by side is negitive diagnoal lines are negitive. so undefined is anything under the x axis that doesn't go over the line
Use the following identities:

Also because the angle is in quadrant 3, sin must be negative.
Therefore

Subbing in tan = 0.958
Answer:
k=3
Step-by-step explanation:
k-6=-3
k-6+6=-3+6
k=3
Answer:0 and -20
Step-by-step explanation:
5x=0;
x=0/5.
3x+60=0;
3x= -60;
x= -60/3;
x= -20