In a survey of a group of men, the heights in the 20-29 age group were normally distributed, with a mean 69.1 inches and a standard deviation of 4.0 inches. A study participant is randomly selected. Find the probability that a study participant has a height less than 68.

Let hh represent the number of hummingbirds and ss represent the number of sunbirds that must pollinate the colony so it can survive until next year. 6h+4s > 746h+4s> 74 this year, 88 hummingbirds pollinated the colony. what is the least number of sunbirds that must pollinate the colony to ensure that it will survive until next year?

Show your workcan a right triangle have this sides? *how to prove it without using the pythagorean theorema*

Kai walked one and two-thirds of a mile on saturday and four and one-sixth of a mile on sunday. how many miles did kai walk?