In a mid-size company, the distribution of the number of phone calls answered each day by each of the 12 receptionists is bell-shaped and has a mean of 41 and a standard deviation of 3. Using the empirical rule, what is the approximate percentage of daily phone calls numbering between 32 and 50? Do not enter the percent symbol.
ans = %

Acircle has a circumference of 28.36 units what is the diameter of the circle

Angle xyz is formed by segments xy and yz on the coordinate grid below: a coordinate plane is shown. angle xyz has endpoints at 3 comma negative 1 and 6 negative 2 and 3 comma negative 3 and measures 36.87 degrees. angle xyz is rotated 270 degrees counterclockwise about the origin to form angle x′y′z′. which statement shows the measure of angle x′y′z′?

The length of a rectangle plus its width is 24 cm. the area is 143 square cm. what are the length and width of the rectangle?