Question 1043582
The test for being an even funtion is:
{{{ f(L) = f(-L) }}}
This function is even because:
{{{ (3.24*10^(-3))*L^2 = (3.24*10^(-3))*(-L)^2 }}}
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{{{ W = ( 3.24*10^(-3))*L^2 }}}
{{{ L^2 = W*( 1/( 3.24*10^(-3))) }}}
{{{ L^2 = W*( 10^3 / 3.24 ) }}}
{{{ L^2 = W*( .30864*10^3 ) }}}
{{{ L^2 = 308.64W }}}
{{{ L = sqrt( 308.64 )*sqrt(W) }}}
{{{ L = 17.568*sqrt(W) }}}
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{{{ W = .4 }}} kg
{{{ L = 17.568*sqrt(.4) }}}
{{{ L = 17.568*.6325 }}}
{{{ L = 11.111 }}}
The approximate length of a fish is 11 cm
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check:
{{{ .4 = ( 3.24*10^(-3))*11.111^2 }}}
{{{ .4 = .00324*123.454 }}}
{{{ .4 = .39999 }}}
OK