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The head librarian at the library of congress has asked her assistant for an interval estimate of the mean number of books checked out each day. the assistant provides the following interval estimate: from 740 to 920 books per day. what is an efficient, unbiased point estimate of the number of books checked out each day at the library of congress?

Identify an equation in point slope form for the line perpendicular to y=3x+5 that passes through (4,-1)

Determine the standard form of the equation of the line that passes through (-2,0) and (8,-5)