I can't give you all the answers to your hw.. but if there is a link somewhere on the page or in the left corner it says Kuta Software.. so maybe look that up for the answers?
-2/2y^4+8/2 =(-2/2y^4)+8/2 -y^4+4.
Answer:
6^2 + 6^2 = 72 sqrt(72) = 8.49
Step-by-step explanation:
use pythagorean therom a^2 + b^2 = c^2
where c is the hyp.