Friday

November 21, 2014

November 21, 2014

Posted by **allen** on Friday, May 4, 2007 at 2:57pm.

the formula i need to us for this

if i am correct

7^2m-3^2m=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.

7^2m-3^2m=40^2m

49m-3^2m=40^2m

49m-9m=40^2m

40m=40^2m

40m=1600m

**Answer this Question**

**Related Questions**

algebra - A homeowner wishes to insulate her attic with fiberglass insulation to...

Algebra - A homeowner wishes to insulate her attic with fiberglass insulation ...

algebra - A homeowner wishes to insulate her attic with fiberglass insulation to...

Statistics - A quality control engineer is interested in the mean length of ...

Sciences fair (house insulation) - K I have to write a report on housing ...

Calc - A metal cable has radius r and is covered by insulation, so that the ...

math - You are thinking of making your mansion more energy efficient by ...

Math - An architect designs a house that is 12 m wide. The rafters holding up ...

physics - Consider three layers of a wall. The first layer is plaster 1.0 cm ...

College Physics - In this problem you will estimate the heat lost by a typical ...