The base of the rectangular pyramid shown above has one side that measures 5 inches, one side that measures 12 inches, and diagonals that measure 13 inches. The height of the rectangular pyramid is 9 inches. If the rectangular pyramid shown above is sliced by a plane that passes through two diagonal vertices of the base and also passes through the top vertex, what is the area of the cross-section of the pyramid?

A.

58.5 square inches

B.

117 square inches

C.

22.5 square inches

D.

54 square inches

please help I have to get it right

(co 3) the soup produced by a company has a salt level that is normally distributed with a mean of 5.4 grams and a standard deviation of 0.3 grams. the company takes readings of every 10th bar off the production line. the reading points are 5.8, 5.9, 4.9, 6.5, 5.0, 4.9, 6.2, 5.1, 5.7, 6.1. is the process in control or out of control and why? it is out of control as two of these data points are more than 2 standard deviations from the mean it is in control as the data points more than 2 standard deviations from the mean are far apart it is out of control as one of these data points is more than 3 standard deviations from the mean it is in control as the values jump above and below the mean