document.write( "Question 769870: The water depth \"d\" for the Bay of Fundy can be modeled by,
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document.write( "d=35-28cos(π)/(6.2)t
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document.write( "where \"d\" is measured in feet and \"t\" is the time in hours. If t=0 represents midnight, at what time(s) is the water depth 7 feet? \n" );
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Algebra.Com's Answer #469088 by lwsshak3(11628)![]() ![]() ![]() You can put this solution on YOUR website! The water depth \"d\" for the Bay of Fundy can be modeled by, \n" ); document.write( "d=35-28cos(π)/(6.2)t \n" ); document.write( "where \"d\" is measured in feet and \"t\" is the time in hours. If t=0 represents midnight, at what time(s) is the water depth 7 feet? \n" ); document.write( "*** \n" ); document.write( "d=35-28cos(π)/(6.2)t \n" ); document.write( "cos(π)=-1 \n" ); document.write( "t=35-28cos(π)/(6.2)d \n" ); document.write( "t=35-28cos(π)/(6.2)*7 \n" ); document.write( "t=(35+28)/43.4=1.45 \n" ); document.write( "what time is the water depth 7 feet? 1.45 hrs after midnight or 1:27 AM \n" ); document.write( " |