myvenus88
03.08.2020 •
Mathematics
Simplify $\dfrac{1}{\sqrt2+1}+\dfrac{1}{\sqrt2-1}.$
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Ответ:
$4
Step-by-step explanation:
She charges $16 upfront
$4x + $16
The $16 charges upfront is the $16 in bold.
The $4x is the amount she charges depending on the hours.
The number of hours is x. The amount she charges per hour is $4.
$4