Answer:
Step-by-step explanation:
n²+2n+1 = (n+1)(n+1)
n²-8n-9 = (n+1)(n-9)
the least common denominator for these two rational expressions is :
(n+1)(n-9)
Number 7 is a because line m crosses at 2 on the y axis and number 8 is a because it goes up by one half each time
Reflexive Property, the property where the quantity equals itself.
3rd option would be correct in my opinion
I think you could do is 9 squared + 12 squared = x squared
the 81+144=225
and the square root of 225 is 15
lets just say the answer you are looking for is 15