PLEASE HELP In an Oreo factory, the mean mass of a cookie is given as 40g. For quality control the standard deviation is 2g. If 10,000 cookies were produced, how many cookies are within the range of 38 to 42 grams?

Can someone 50 first drop menu 0.80 or 0.75 or 1.20 or 4.00 second drop menu 4.00 or 0.75 or 0.25 or 3.75 3rd 15,6,10, or 9 4th yes or no

Which of the following is true for the relation f(x)=2x^2+1

Sketch the region enclosed by the given curves. decide whether to integrate with respect to x or y. draw a typical approximating rectangle and label its height and width. y= 5x, y=7x^2then find the area s of the region.