Determining the Greatest Surface Area
Chad's pyramid
amid Chad and Emma are making triangular pyramids using
origami. Emma needs more paper than Chad. The area
of each face is given. How much more will she need?
43.6 cm2
46.1 cm2
60.5 cm
56.7 cm2
square centimeters more
Emma will need
paper than Chad.
37.5 cm2
73.5 cm?
70 cm2
75 cm2

(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