You invested $1000 in a savings account at the end of 6th grade. After high school graduation, the savings account amount increased at an exponential ...
Midterm Practice Chapter 6 With all the coffee beans that come in for processing, a coffee manufacturer cannot sample all of them. Suppose one manufacturer uses the function to determine how many beans that it must take from containers in order to obtain a good representative sample. 1. How does this function relate to the function
? Graph both functions.
2. How many samples should be taken from a shipment of 45 containers of beans? Explain why this can only be a whole number answer.
Chapter 7 You invested $1000 in a savings account at the end of 6th grade. After high school graduation, the savings account amount increased at an exponential rate to $1340.10 1. Find an equation in the form , is the amount in the savings account at the end of 6th grade, is the average annual growth rate, is the time in years since the end of 6th grade, and is the amount in the savings account at time . (Hint: Substitute the known values and solve for .) 2. What is the interpretation for the value of ?
3. If this trend continues, what would the amount in the savings account total when you have your 20 year high school reunion?
Chapter 8 The junior class is renting a laser tag facility with a capacity of 325 people. The cost for the facility is $1200. The party must have 13 adult chaperones. 1. If every student who attends shares the facility cost equally, what function models the cost per student with respect to the number of students who attend? What is the domain of the function? How many students must attend to make the cost per student no more than $7.50? 2. The class wants to promote the event by giving away 30 spots to students in a drawing. How does the model change? Now how many paying students must attend so the cost for each is no more than $7.50?
