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Mathematics 7 Online
OpenStudy (anonymous):

help please

OpenStudy (anonymous):

OpenStudy (anonymous):

do you have any idea how to solve that ?

OpenStudy (anonymous):

its the last one right because it it the only one bigger than one minute

OpenStudy (anonymous):

@Ogziii

OpenStudy (anonymous):

well , t = 1 min , in seconds = 60s right ?

OpenStudy (anonymous):

yes

OpenStudy (anonymous):

now solve this \[60 = \sqrt{\frac{ d }{ 16}}\] do you know how to solve it ?

OpenStudy (anonymous):

mm could you explain?

OpenStudy (anonymous):

you need to get how much is d , what should you do first ?

OpenStudy (anonymous):

multiple both sides by 16...?

OpenStudy (anonymous):

no , you need to take away the square roots first

OpenStudy (anonymous):

okay how do you do that, square?

OpenStudy (anonymous):

yes , square boths sides , 16² = d/16 , now get how much is d ?

OpenStudy (anonymous):

would it be 4096 or was i not supposed to simplify 16^2

OpenStudy (anonymous):

ah sorry , its 60² = d/16 , now , 3600 = d/16, get d now

OpenStudy (anonymous):

oh okay so 57,600

OpenStudy (anonymous):

exactly , thats the right answer , i hope that was helpful))

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