Let P be a point not on the line L that passes through the points Q and R. The distance d from the point P to the line L isd =|a × b||a|wherea = QR and b = QP. Use the above formula to find the distance from the point to the given line.(0, 2, 2); x = 2t, y = 6 − 3t, z = 2 + t d =

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How many quarts of a 50% solution of acid must be added to 20 quarts of a 20% solution of acid in order to get a 40% solution of acid?

Twelve different video games showing substance use were observed and the duration times of game play (in seconds) are listed below. the design of the study justifies the assumption that the sample can be treated as a simple random sample. use the data to construct a 99% confidence interval estimate of μ, the mean duration of game play. 4028 4316 4816 4650 4036 5010 4833 4331 4307