Amelia wants to paint three walls in her family room. two walls are 26 feet long by 9 feet wide. the other wall is 18 feet long by 9 feet wide. a. what is the total area of these walls amelia wants to paint? b. each gallon of paint covers about 250 square feet. how many gallons of paint should amelia buy to paint the walls?

Right triangle xyz has a right angle at vertex y and a hypotenuse that measures 24 cm. angle zxy measures 70º. what is the length of line segment xy? round to the nearest tenth. 8.2 cm 8.7 cm 22.6 m 25.5 cm

For a function f(x), a) if f(7) = 22 then f^-1(22) = b) f^-1(f(c)) =

(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