sound travels about 750 miles per hour. If you stand in a canyon and sound a horn, you will hear and echo. Suppose it takes about 3 seconds to hear the echo. How far away is the canyon wall, in feet?

Use the distributive law to multiply. 3(4x + 5y + 6)

The constant of proportionality is always the where k is the constant of proportionality. additionally, you can find the constant of proportionality by finding the ratio for any point onasap

Suppose that 3% of all athletes are using the endurance-enhancing hormone epo (you should be able to simply compute the percentage of all athletes that are not using epo). for our purposes, a “positive” test result is one that indicates presence of epo in an athlete’s bloodstream. the probability of a positive result, given the presence of epo is .99. the probability of a negative result, when epo is not present, is .90. what is the probability that a randomly selected athlete tests positive for epo? 0.0297