Given a≠±b and ( (a^2−b^2) / (a+b) )=12, find a−b.
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Create a data set with 8 points in it that has a mean of approximately 10 and a standard deviation of approximately 1.

The angle of elevation from point a to the top of the cliff is 38 degrees. if point a is 80 feet from the base of the cliff , how high is the cliff ?

What is the t intercept of the line given by the equation below y= -10x + 14