Any help is appreciated because I have a probe in a couple of hours I'm wondering if someone could explain to me being thorough with the steps how 1+1/x² could equal
x²+1/x²

where did the second x² come from??? ​

Rose drew a regression line for this paired data set. her line passed through (1, 2) and (3, 5) . what is the equation of rose's regression line?

Which inequality comparing two of the expressions is true when 0.7 < x < 0.9

Aschool puts on a play. the play costs $1,200 in expenses. the students charge $4.00 for tickets. there will be one performance of the play in an auditorium that seats 500 people. what is the domain of the function that shows the profit as a function of the number of tickets sold?