If r is an integer greater than 1, what is the value of (−1)r +1 if:

1. r is an odd number

2. r is an even number

1. 0

Step-by-step explanation:

I don't know the even number one.  (−1)^r when r is an odd integer greater than 1 always  will equal -1                                     then -1 + 1 = zero

c. prove the lengths are the same.

step-by-step explanation:

you need to prove the segments are congruent. congruent segments have the same length. find the lengths of the segments using the distance formula, and compare them.

answer: c. prove the lengths are the same.

s

step-by-step explanation: