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stock prices find the answer of price between June and September

Algebra
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the price of stock in april (x= 1) price at 116, find the monthly average rate of change in price between June and September, June price is 87 and September price is 111

Mar 23rd, 2015

87*(1+i)^3 = 111

(1+i)^3 = 111/87 = 1.27586

3ln(1+i) = 0.243622

ln(1+i) = 0.081207

1+i = 1.0846

i = 0.0846


Mar 23rd, 2015

The phone company calculates a customer’s monthly cell phone bill as follows: monthly service charge: $30 voice charges:  First 100 minutes: $0.014 per minute  Second 100 minutes: $0.022 per minute  Additional minutes: $0.037 per minute a. What is the charge for a month in which 135 minutes were used? b. What is the charge for a month in which 289 minutes were used? c. Construct a piecewise function that gives the monthly charge for x minutes of usage.


Jan 5th, 2016

The phone company calculates a customer’s monthly cell phone bill as follows: monthly service charge: $30 voice charges:  First 100 minutes: $0.014 per minute  Second 100 minutes: $0.022 per minute  Additional minutes: $0.037 per minute a. What is the charge for a month in which 135 minutes were used? b. What is the charge for a month in which 289 minutes were used? c. Construct a piecewise function that gives the monthly charge for x minutes of usage.


Jan 5th, 2016

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Mar 23rd, 2015
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