In triangle abc , side bc is 3 inches long and side ab is 16 inches long. angle a measures 20 °. given that angle c is an obtuse angle, find the measure of angle c. round to the nearest tenth of a degree
total cost $33
6 games played
1. 1,650 ft
2. 1.75 sec
sound travels about 750 miles per hour. convert the sound's speed into feet per second. since
1 mile = 5,280 feet, then
750 miles = 750·5,280 feet = 3,960,000 feet.
1 hour = 60 minutes,
1 minute = 60 seconds, then
1 hour = 3,600 seconds.
1. if it takes about 1.5 seconds to hear the echo, then the canyon is
2. if you stand 1,925 feet from the canyon wall and sound the horn, then it will take
to hear the echo.