If strep bacteria causes the infection, it can remain contagious for up to 2 weeks without treatment. However, antibiotics can shorten the contagious period and li â¦ mits to about 24 to 48 hours once the therapy starts.     http://health.top54u.com/post/How-Long-is-Tonsillitis-Contagious.aspx.
Calculate Options Implied Volatility in Excel. Implied Volatility Function: Returns the annualized volatility of an underlying security implied by the market price of a European call or put option on that security, based on Black-Scholes valuation. Description of parameters.
Advertisement. Advertisement. =PMT(rate, nper,pv,[fv],[type]). =PMT(D3/12,2*12,C3). Excel Payment (PMT) function is extremely useful when you need to know the monthly payment amount on full loan/credit payment, it actually evaluates amount to be paid monthly on the basis of credit amount, interest amount, and time.