Concept explainers
Reminder Round all answers to two decimal places unless otherwise indicated.
An Expensive Book A scientist visited Amazon.com to purchase a book. To his amazement, he found the book priced at
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Functions and Change: A Modeling Approach to College Algebra (MindTap Course List)
- Depreciation Once a new car is driven away from the dealer, it begins to lose value. Each year, a car loses 10% of its value. This means that each year the value of a car is 90% of the previous year’s value. If a new car was purchased for $20,000, the value at the end of the first year would be $20000(0.90) and the value of the car after the end of the second year would be $20000(0.90)2. Complete the table shown below. What will be the value of the car at the end of the eighth year? Simplify the expression, to show the value in dollars.arrow_forwardAn earthquake in Mexico in 1985 had and intensity level about 125, 000, 000 times the reference intensity. Find the Richter number for that earthquake.arrow_forward
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