a farmer will divide a 1/4 acre plot of land into three equal-sized sections what will be the size of each section?
five friends will share equally 1/2 yard if felt for an art project. how much felt will each friend get?

Find the average rate of change for f(x) = x2 − 3x − 10 from x = −5 to x = 10.

Billy plotted −3 4 and −1 4 on a number line to determine that −3 4 is smaller than −1 4 is he correct? explain why or why not?

Afactory makes propeller drive shafts for ships. a quality assurance engineer at the factory needs to estimate the true mean length of the shafts. she randomly selects four drive shafts made at the factory, measures their lengths, and finds their sample mean to be 1000 mm. the lengths are known to follow a normal distribution whose standard deviation is 2 mm. calculate a 95% confidence interval for the true mean length of the shafts. input your answers for the margin of error, lower bound, and upper bound.