Sunday, April 19, 2009

Geometry...?

4: Pine bark mulch 6 inches deep is to be spread in each of the following flower beds. 1st: 2 foot by 25 foot rectangular bed, 2nd: 2 foot by 25 foot rectangular bed, 3rd: 4 foot by 25 foot rectangular bed, and 4th: 15 foot diameter circular flower bed. Mulch is sold by the cubic yard. To the nearest cubic yard, how much mulch will need to be purchased?


5


7


16


27


5: Ed works for an environmental protection agency which deals with land areas that have been contaminated by toxic waste. The contaminated soil covers an area of 1.62 acres. Ed must remove the top 18 inches of soil in this area. 1 acre = 43,560 square feet 1 square yard = 9 square feet What is the area of contaminated soil in square yards?


1600.0


3920.4


7840.8


10890


6: With the information from number 5, what is the total volume of the contaminated soil in cubic yards?


1600.0


3920.4


7840.8


10890


7: With the information from number 5 and 6, if each truck can haul 10 cubic yards of soil, how many full truckloads of contaminated soil will Ed be removing?


160


392


393


784

Geometry...?
It seems to me that you are trying to get other people to do your homework for you. That%26#039;s not very good for your education. Now reach for your textbook and a calculator.



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