Answer:
Step-by-step explanation:
take 60 degree as reference angle
using cos rule
cos 60=adjacent/hypotenuse
1/2=80/x(do cross multiplication)
80*2=x
160=x
Answer:
I think it's B, I might be wrong though
The answers are:
1. c = 31.4
2. 96.2
6900 + 8100 = 15000
15000 divided by 2 = 7500
So your answer is 7500
It's a linear function.
We need only two points to plotting a graph.
Convert the equation of line from the standard form to slope0intercept form.

We choose any two values of x and calculate y.
