The depth of the deepest part of a body of water is 253440 inches. Express this depth in scientific notation using an appropriate unit for expressing the depth? what is the depth?
well...
if you want to get fancy the best unit for expressing the depth of water is the "fathom". It's 6 feet or 72 inches
\(253440 in = \dfrac {253440in}{72 in/fathom}=3520 fathoms\)
