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Kalkulator powierzchni dachu

Jak obliczyć powierzchnię dachu?
Kalkulator umożliwia obliczenie powierzchni dachowych w wariantach : jednospadowy, dwuspadowy, trzyspadowy, czterospadowy.


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Number of wallpapers

Jak oszacować niezbędną ilość tapety?
Ile kupić tapety?
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Calculator VAT refund for building materials

The calculator calculates the amount of VAT that can be refunded in respect of incurred expenses associated with the purchase of construction materials.                    
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Purchase price / sales tax bill

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Life

Alcohol Calculator - witrualny breathalyzer online converter

ile alkoholu we krwi? obliczanie zawartości alkoholu we krwi
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Math

Bernoulli scheme

Calculator allows you to calculate the probability of a given number of successes with a specified number of trials and probability of success.
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Calculator index of renal failure (Renal Failure Index)

Calculator to the data: the amount of sodium in the urine, serum creatinine and urine of renal failure calculates the RFI.                
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Verifier NRB / BBAN

Calculator allows you to verify the correctness of the entered account number.