Answer :the 1st and 3rd are true
Step-by-step explanation:
you do the math how their set up so just right those and you can get your answer that way. (if your adding a positive and negative your basically subtracting so just write in the order their in; if you subtracting a negative from a positive it equals a positive; if your subtracting a negative from a negative or the answer is positive; if your subtracting a positive from a negative its negative) i hope this helps if u have any more questions just message me and i will be happy to help you anytime!!! <3
Answer:

Step-by-step explanation:
Midpoint formula is
---------------(1)
Here

Substituting values in equation (1)


6.28 (equation for circle perimeter is 2πr)
<h3>
Answer: 1</h3>
Explanation:
The original expression is the same as
since 
The degree of any polynomial is always the largest exponent. This applies to single variable polynomials only.
Therefore, the degree of
is 1. This is a linear polynomial, and it's also a binomial since it has 2 terms 17x and 4.