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 For a fixed temperature of 25 degrees Celsius and salinity of 35 parts per thousand, the speed of sound is a function of the depth. At the surface, the speed of sound is 1534 meters per second. For each increase in depth by 1 kilometer, the speed of sound increases by 17 meters per second.

Determine the speed of sound when the depth is 9 kilometers.

 Apr 11, 2022
 #1
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1534  m/s   +   9 (17) = ___________ m/s

 Apr 11, 2022
 #2
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The measures of the interior angles of a quadrilateral are $x$x​ °,  $3x$3x​ °,  $5x$5x​ °, and  $7x$7x​ °. Find the measures of all the interior angles.

3x=

Guest Apr 11, 2022

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