The population of squirrels in natures reserve is decreasing by 2% every year if there were 500 squirrels in 2019 how many would there be in 2025?

How to choose the sign of the radical in the denominator of the formula for the distance from a point to a line.

Astick 2 m long is placed vertically at point b. the top of the stick is in line with the top of a tree as seen from point a, which is 3 m from the stick and 30 m from the tree. how tall is the tree?

Aparticular telephone number is used to receive both voice calls and fax messages. suppose that 25% of the incoming calls involve fax messages, and consider a sample of 25 incoming calls. (a) what is the expected number of calls among the 25 that involve a fax message?