Some purchasing specialist jobs also assign specialists to track the maintenance of office equipment. Maintaining records of warranties and service agreements is sometimes expected of a person in this position.
A retail price index would take this into account and use a weighted average which gives more prominence to commonly bought items. Excel does not contain a built in function to calculate a weighted average. It is however easy to do it using the SUMPRODUCT() function in a simple formula. SumProduct() multiplies two arrays (or ranges) together and returns the sum of the product. In the illustration it would calculate '(B4 x C4) + (B5 x C5) + (B6 x C6)'.
Converting to Exponential & Logarithmic Functions. A. Convert to logarithmic equations. For example, the logarithmic form of 23 = 8 is log2 8 = 3. B. Write the logarithmic equation in exponential form. For example, the exponential form of log5 25 = 2 is 52 = 25. D. Express the following as a single logarithm. Where P is the initial investment and r is the interest rate.