algebra
posted by allen .
A homeowner wishes to insulate her attic with fiberglass insulation to conserve energy. The insulation comes in 40cm wide rolls that are cut to fit between the rafters in the attic.if the roof is 7 m from peak to eave and the 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.
the formula i need to us for this
if i am correct
7^2m3^2m=40m
am i corect with this
That is the right formula, however, you failed to take the square root of 40.
length=sqrt(40) meters.
7^2m3^2m=40^2m
49m3^2m=40^2m
49m9m=40^2m
40m=40^2m
40m=1600m
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