Answer:
d) 40.78 inches
Step-by-step explanation:
See attached for details
Yes, the relationship is proportional. 3 * 3.2 = 9.6. And 5 * 3.2 = 16.
D because the measure for every triangle is 180 degrees
In SOHCAHTOA you want to use cosine (CAH)
Cos75 = x/30
Use algebra to get x by itself.
So type into your calculator:
30cos(75) which equals 7.76