Respuesta :

confusedwithhw
11. c=1/2ab^2
multiply both sides by 2
2c=ab^2
divide by a
2c/a=b^2
square root
[tex] \sqrt{ \frac{2c}{a} } = b[/tex]
12. x+8y/4=9y
multiply 4
x+8y=36y
subtract 8y
x=28y

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