Please help! Due by tonight at 12.

What is the length of the segment joining the points at (4,5) and (6,-2) round to the nearest tenth if necessary

Given the following sampling distribution of one mean with a sample size 49, from a normally distributed population,find the population standard deviation, o.79828588912497

Calculate the density of benzene if 300ml of it weighs 263g. a. 0.88 g/ml b. 1.14 g/ml c. 78,900 g/ml d. 37 g/ml