A rectangular playground is to be fenced off and divided in two by another fence parallel to one side of the playground. Eight hundred and forty feet of fencing is used. Find the dimensions of the playground that maximize the total enclosed area. What is the maximum area?

Two language majors, anna and megan, took exams in two languages. anna scored 85 on both exams. megan scored 74 on the first exam and 85 on the second exam. overall, student scores on the first exam had a mean of 82 and a standard deviation of 4, and the second exam scores had a mean of 71 and a standard deviation of 13. a) to qualify for language honors, a major must maintain at least an 85 average across all language courses taken. so far, which of anna and megan qualify? b) which student's overall performance was better?

Ineed in figuring out this problem.

If f(x)= sqrt4x+9+2, which inequality can be used to find the domain of f(x)?