document.write( "Question 754884: A group of students are
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document.write( "bushwalking. They walk north
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document.write( "from their camp for 7.5 km, then
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document.write( "walk west until their bearing
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document.write( "from camp is 320c. How far are
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document.write( "they from camp, to 1 decimal
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document.write( "place? \n" );
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Algebra.Com's Answer #459370 by Cromlix(4381)![]() ![]() You can put this solution on YOUR website! Constructing a right angled triangle \n" ); document.write( "with adjacent = 7.5 km \n" ); document.write( "Angle =(360 - 320) 40 degrees. \n" ); document.write( "To find: the hypotenuse \n" ); document.write( "Using Cos = Adjacent/Hypotenuse \n" ); document.write( " Cos (40) = 7.5/Hypotenuse \n" ); document.write( " Hypotenuse = 7.5/cos 40 \n" ); document.write( " Hypotenuse = 9.8 Km (1 decimal place) \n" ); document.write( "Therefore they are 9.8 km away from camp. \n" ); document.write( "Hope this helps \n" ); document.write( ":-) \n" ); document.write( " |