Power lines must be laid underground in order to get power to a remote island. The cable costs $500 per mile to lay underground and $1100 per mile to lay underwater. The locations of the terminal box, the island, and the shore are shown below. Your boss instructs you to lay 3 miles of cable along the shoreline and then lay the remainder of the cable in a straight line out to the island.

  best answer for the question.1.     divide  7/24  by  35/48  and reduce the quotient to the lowest fraction. 

Simplify (a/b - b/a) times (a - a^2/a+b) a - a^2/a=b is a mixed number

1. there are 25 students who started computer programming in elementary school and 25 students who started computer programming in middle school. the first group had a mean final project grade of 95% and the second group had a mean final project grade of 92%. the line plot shows the differences after 10 rerandomizations. determine whether the difference in the means of the two groups is significant based on the line plot. explain your answer.