You would use the Pythagorean threroem 4^2 + 5^2 = C^2. 16 + 25 = 41 the square root of 41 is 6.40
5 and 1 you multiple 5*1 to get 5 and add 5+1 to get 6
Answer:
5a^2 +2a
Step-by-step explanation:
Like terms are ones with the same exponent of x. They can be combined.
3a^2 +2a +2a^2
= (3a^2 +2a^2) +2a
= (3+2)a^2 +2a
= 5a^2 +2a
Answer: Id say C.
Step-by-step explanation: The other two can't possibly be a function.
<h2><em>Mark as brainliest if im correct please</em></h2>