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Mathematics 15 Online
OpenStudy (anonymous):

An aquarium sells cubic fish tanks of different sizes. The length of the small size fish tank is 4 feet. The dimensions of the jumbo size fish tank are double the dimensions of the small size fish tank. Which expression can be used to find the ratio of the volume of the small size fish tank to the volume of the jumbo size fish tank?

OpenStudy (anonymous):

@jim_thompson5910 @experimentX @dpalnc

OpenStudy (anonymous):

@dpaInc

OpenStudy (anonymous):

the options are strange that is why i am confused (8/4)^2 (4/8)^3 (8/4)^3 (4/8)^2

OpenStudy (anonymous):

plz help

OpenStudy (anonymous):

im not sure if it is B or C

OpenStudy (anonymous):

@jim_thompson5910

OpenStudy (anonymous):

is it B?...i think it is asking for the smaller over the larger....

OpenStudy (anonymous):

@jim_thompson5910

jimthompson5910 (jim_thompson5910):

you are correct

OpenStudy (anonymous):

ok good to know

OpenStudy (anonymous):

one more?

OpenStudy (anonymous):

The picture shows a flagpole, AB, above a house. Rounded to the nearest whole number, what is the height, in feet, of the flagpole AB?

OpenStudy (anonymous):

i think it is 12.4 but im not sure

OpenStudy (anonymous):

@jim_thompson5910

jimthompson5910 (jim_thompson5910):

you should get 12.444863728671 which rounds to 12, so you pretty much got it

OpenStudy (anonymous):

ok yeah i just simplified

OpenStudy (anonymous):

one more plz..im just double checking that i got these right

OpenStudy (anonymous):

Alex designed the model of a cylindrical water tank to be installed in a park. The model has a radius of 5 cm and a height of 14 cm. The dimensions of the actual water tanks that will be installed in the park are 8 times larger than the model. The total surface area of the actual water tanks, rounded to the nearest whole number, is _________ cm2. Use 22/7 for pi.

OpenStudy (anonymous):

i got 38217.14

OpenStudy (anonymous):

o wait whole number....38,217

OpenStudy (anonymous):

@jim_thompson5910 ill post it on a different thing next time

jimthompson5910 (jim_thompson5910):

I'm getting the same, nice work

OpenStudy (anonymous):

ok thanks

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