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Reminder Round all answers to two decimal places unless otherwise indicated.
Credit Card Payments You make one charge to a new credit card, but then charge nothing else and make the minimum payment each month. You can't find all of your statements, but the accompanying table shows, for those that you do have, your balance
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Balance B |
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a. Use regression to find an exponential for the data in the table. (Round the decay factor to four decimal places.)
b. What was your initial charge?
c. For such a payment scheme, the decay factor equals
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Chapter 4 Solutions
EBK FUNCTIONS AND CHANGE: A MODELING AP
- Grade Point Average In many universities students are given grade points for each credit unit according to the following scale: A 4 points B 3 points C 2 points D 1 point F 0 point For example, a grade of A in a 3-unit course earns 43=12 grade points and a grade of B in a 5-unit course earns 35=15 grade points. A students grade point average GPA for these two courses is the total number of grade points earned divided by the number of units; in this case the GPA is (12+15)8=3.375. a Find a formula for the GPA of a student who earns a grade of A in a units of course work, B in b units, C in c units, D in d units and F in f units. b Find the GPA of a student who has earned a grade of A in two 3-unit courses, B in one 4-unit courses and C in three 3-unit courses.arrow_forwardQuestion 2 Francesca's gross pay for her pay period was $3,400. How much of her earnings were withheld for Medicare? $32.50 $49.30 $93.75 $29.06 Solution The.correct answer is $49.30 Show next question Exitarrow_forward
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