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Summersnow8
 one year ago
V = π r^2 h
Where:
r = 61.0 m, h = 125.3 m
Find:
V = ?  1464740.243
*Be sure to follow the rules for adding and multiplying measurements.
Summersnow8
 one year ago
V = π r^2 h Where: r = 61.0 m, h = 125.3 m Find: V = ?  1464740.243 *Be sure to follow the rules for adding and multiplying measurements.

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zepdrix
 one year ago
Best ResponseYou've already chosen the best response.0Ooo the rules.. oh boy.. I'm trying to remember those..

zepdrix
 one year ago
Best ResponseYou've already chosen the best response.0When you multiply, you end up with the lower amount of decimals.... I think? Bah I better look it up

Summersnow8
 one year ago
Best ResponseYou've already chosen the best response.0@zepdrix Round the result to the same number of significant digits as the measurement with the least number of significant digits but i can't seem to get the right answer

Summersnow8
 one year ago
Best ResponseYou've already chosen the best response.0yeah that = 1464740.243

zepdrix
 one year ago
Best ResponseYou've already chosen the best response.0Well, let's make sure we're `rounding between each step`, not just multiplying it all together :O

zepdrix
 one year ago
Best ResponseYou've already chosen the best response.0@phi just take over please _ my brain todays

phi
 one year ago
Best ResponseYou've already chosen the best response.0It sounds like you should round 1464740.243 to 1460000.

Summersnow8
 one year ago
Best ResponseYou've already chosen the best response.0okay, ill try that

zepdrix
 one year ago
Best ResponseYou've already chosen the best response.0Ya try that :) But I think that if we're following the rules each step of the way, we end up with a slightly larger answer. \[\Large\rm V= \color{green}{3.14} (\color{orangered}{61.0m})^2(\color{royalblue}{125.3m})\]Squaring, then rounding to 3 digits gives us,\[\Large\rm V= \color{green}{3.14} (3720m^2)(\color{royalblue}{125.3m})\]Multiplying the pi, then rounding again gives,\[\Large\rm V= 11700m^2(\color{royalblue}{125.3m})\]Then doing our last multiplication step, before rounding should give us,\[\Large\rm V= 1466010m^3\]So I think we actually want to round UP in this case, ya?
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