Sam can clean the pool in 5 hours; his coworker Glenn can clean the same pool in 7 hours. One day Sam started to clean the pool by himself and worked for an hour. Then Glenn joined him, and the finished cleaning the pool. How long did it take them to finish cleaning the pool?

List the 10 possible samples (without replacement) of size 3 3 that can be obtained from the population of five officials.

Arefrigeration system at your company uses temperature sensors fixed to read celsius (°c) values, but the system operators in your control room understand only the fahrenheit scale. you have been asked to make a fahrenheit (°f) label for the high temperature alarm, which is set to ring whenever the system temperature rises above –10°c. what fahrenheit value should you write on the label

What is the value of f(x) = 2.2 for f(-2)?