The Acme Company manufactures widgets. The distribution of widget weights is bell-shaped with a mean of 60 ounces and a standard deviation of 10 ounces.

a) 95% of the widget weights lie between and

b) What percentage of the widget weights lie between 30 and 80 ounces? %

c) What percentage of the widget weights lie above 50?

he spend 5.1 minutes chatting with his friends

step-by-step explanation:

2/5+1/2=9/10

6/1-9/10=5 1/10

step-by-step explanation:

x^2 -12x + 36 + y^2 = 36

x^2 + y^2 = 12x

r^2 = 12rcos(theta)

r = 12 cos(theta)

according to the triangle sum theorem, all the angles in a triangle must add up to 180 degrees. if we know one angle is already 90, we do 180-90=90. the other 2 angles must add up to 90, exactly.

step-by-step explanation: