Sunday, April 19, 2009

Please i need help bad!!?

1: Soda is sold in aluminum cans that measure 6 inches in height and 2 inches in diameter. How many cubic inches of soda are contained in a full can? (Round your answer to the nearest tenth of a cubic inch.)


12.0


18.8


24.0


75.4








2: A pharmacist is filling medicine capsules. The capsules are cylinders with half spheres on each end. If the length of the cylinder is 12 mm and the radius is 2 mm, how many cubic mm of medication can one capsule hold? (Round your answer to the nearest tenth of a cubic mm.)


32.7


150.7


184.3


202.6








3: Please refer to figure 1 and find the volume in cubic feet.


1575


4050


5400


6225








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

Please i need help bad!!?
1) 18.8


2) 184.3


^^There%26#039;s a start for you


The formula for a cylinder is base times height. (radius squared times PI times height)





The formula for a sphere is 4 times PI times the radius cubed.





Go to a converting website for the others.
Reply:1. Pi * R^2 * H= Pi*1*6 should about equal 18.8


2. Pi * R^2 * H + 4/3 * Pi * R^3 = (Pi *4 * 12) + (4/3 * Pi * 8)= ans


3. ?


4. [ (200 + Pi * 7.5^2) * 0.5 ] / 9 = ans


5. (43560*1.62) / 9 = ans


6. (ans to 5.) * 1.5


7. (ans to 6.) / 10, round up



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