Answer:
a=10
Step-by-step explanation:
a^2+b^2=c^2
8 is b
12.8 is c
a^2+64=163.84
a^2=99.84
a=√99.84
a=10
Hope this helps!
Answer: 7238.28
Step-by-step explanation:
Answer:
C
Step-by-step explanation:
Since the graph hits 0 at x = 0, your y intercept is 0.
The graph is decreasing which means you have a negative slope.
They gave you a coordinate so use it to find the slope.

That's your slope.
C is the correct answer.
Subtract the y then add the 4 to the other side so y=0