The weight that can be safely supported by a 2- by6-inch support beam varies inversely with its length. a builder finds that a support beam that is 6 feet long will support 800 pounds. find the weight that can be safely supported by a beam that is 16 feet long.

Driving 75 mph, it takes alicia 2 hours to reach the airport to go on a vacation. it then takes her 4 hours to get to her destination with the jet traveling at a speed of 400 mph. how many miles does alicia travel to get to her destination?

The swimming pool is open when the high temperature is higher than 20∘c. lainey tried to swim on monday and thursday (which was 33 days later). the pool was open on monday, but it was closed on thursday. the high temperature was 30 ∘c on monday, but decreased at a constant rate in the next 33 days. write an inequality to determine the rate of temperature decrease in degrees celsius per day, d, from monday to thursday.

If f(x)= sqrt4x+9+2, which inequality can be used to find the domain of f(x)?