Find the exact value of cos angle sin angle equal 1/4 and 90 degree greater than 0 greater than 90

Given the box plot, will the mean or the median provide a better description of the center? box plot with min at 10.5, q1 at 11.5, median at 12.5, q3 at 13.5, max at 15

Segment xy is dilated through point m with a scale factor of 2. which segment shows the correct result of the dilation

What number should be added to the expression x^2+3x+ in order to create a perfect square trinomial? 3/2 3 9/4 9