math!
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two ships, A and B are similar in shape and the ratio of their volumes is 27: 125 000 000.
-- if the larger ship has a total surface area of 2km^2, calculate, in km^2, the total surface area of the smaller ship. give your answer in standard form.
how to do???? help =D
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2/27 x 125 000 000 = 9.2 x 10^6
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a ship of the size of pulau brani?
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sorry wrong ans it is 2/125 000 000 x 27 =4.32x10^-7
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x/(27^(2/3)) = 2/(125000000^(2/3))Originally posted by teasixten:two ships, A and B are similar in shape and the ratio of their volumes is 27: 125 000 000.
-- if the larger ship has a total surface area of 2km^2, calculate, in km^2, the total surface area of the smaller ship. give your answer in standard form.
how to do???? help =D
go use your calculator
born to live is wrong dun take his answer. -
x/(27^(2/3)) = 2/(125000000^(2/3))Originally posted by teasixten:two ships, A and B are similar in shape and the ratio of their volumes is 27: 125 000 000.
-- if the larger ship has a total surface area of 2km^2, calculate, in km^2, the total surface area of the smaller ship. give your answer in standard form.
how to do???? help =D
go use your calculator
born to live is wrong dun take his answer. -
(27/125,000,000)^2/3 x 2km^2
that's it...Originally posted by teasixten:two ships, A and B are similar in shape and the ratio of their volumes is 27: 125 000 000.
-- if the larger ship has a total surface area of 2km^2, calculate, in km^2, the total surface area of the smaller ship. give your answer in standard form.
how to do???? help =D -
who gives a crap how much smaller it actually is? thats the stupidity of singapore maths..you do pointless stuff
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with your reply, it just shows your closed mind and your bigotry
it is a basic ENGINEERING question... (and with that, nationalities don't matter)
when a model is built at half scale, you know the surface area of the real thing would be 4 times that of the model, and volume 8 times that of the model...
that's where you get your amount of material to use..
your slip is showingOriginally posted by vito_corleone:who gives a crap how much smaller it actually is? thats the stupidity of singapore maths..you do pointless stuff -
now you know why i dont touch any science/math subjectsOriginally posted by the Bear:with your reply, it just shows your closed mind and your bigotry
it is a basic ENGINEERING question... (and with that, nationalities don't matter)
when a model is built at half scale, you know the surface area of the real thing would be 4 times that of the model, and volume 8 times that of the model...
that's where you get your amount of material to use..
your slip is showing -
ration of volumes 27:125000000
ration of sides 3:500
ration of surface areas 9:250000
so if larger ship is 2km2
small ship is 2/250000*9
equals 7.2 * 10^-5
correct not? -
You O level next year right!
Go get your self a Redspot E maths TYS
but remember don't copy,learn
seriously