The coefficient of determination resulting from a particular regression analysis was 0.85. what was the correlation coefficient, assuming a positive linear relationship

Aquadrilateral has exactly one pair of parallel sides. which name best describes the figure?

Noel is hoping to make a profit (in $) on the school play and has determined the function describing the profit to be f(t) = 8t – 2654, where t is the number of tickets sold. what does the number 8 tell you?

Find the maximum value of p= 4x + 5y subject to the following constraints :