Find the equation of the ellipsoid passing through the points (±7,0,,±1,0)(±7,0,,±1,0) and (0,0,±4)

Weekly wages at a certain factory are normally distributed with a mean of $400 and a standard deviation of $50. find the probability that a worker selected at random makes between $450 and $500

List x1, x2, x3, x4 where xi is the midpoint endpoint of the five equal intervals used to estimate the area under the curve of f(x) between x = 0 and x = 10.

How many square centimeters of wrapping paper will be used to wrap the shoe box?