It is the first one I believe
A squared + b squared = c squared
8.6^2+14.7^2=c^2
73.96+216.09=c^2
square root both sides and...
c=17.03085
Your answer is A
Hope this helps
Answer:
f(4)=-2
Step-by-step explanation:
f(4)=-4+2=-2
It is to insure the experiment does not have bias.
