document.write( "Question 79431: 3a homeowner wishes to insulate her attic with fiberglass insulatio to conserve energy. The insulation comes in 40-cm wide rolls that are cut to fit between the rafers in the attic. If the roof is 7 m from peak to eave and teh attic space is 3 m high at the peak, how long does each of the pieces of insulation need to be? Round to the nearest tenth. \n" ); document.write( "
Algebra.Com's Answer #56997 by checkley75(3666)![]() ![]() ![]() You can put this solution on YOUR website! THIS IS A RIGHT TRIANGLE PROBLEM WITH THE HYPOTENUSE=7 & 1 SIDE=3. \n" ); document.write( "THUS WE HAVE THE FORMULA \n" ); document.write( "A^2+3^2=21^2 \n" ); document.write( "A^2+9=441 \n" ); document.write( "A^2=441-9 \n" ); document.write( "A^2=432 \n" ); document.write( "A=20.8 CM. ANSWER FOR THE LENGTH OF EACH PIECE OF INSULATION. \n" ); document.write( " |