A bead is formed by drilling a cylindrical hole, with a 2 mm diameter, through a sphere with an 8 mm diameter. Estimate the surface area of the bead. Leave the answer in
terms of pi

What is the inverse of the function f(x) = 2x + 1?

2people are trying different phones to see which one has the better talk time. chatlong has an average of 18 hours with a standard deviation of 2 hours and talk-a-lot has an average of 20 hours with a standard deviation of 3. the two people who tested their phones both got 20 hours of use on their phones. for the z-scores i got 1 for the chatlong company and 0 for talk-a-lot. what is the percentile for each z-score?

Which equation expression the relationship between the number of boxes b and the number of cans c and the proportion is 48