rite your final answers in a complete proper grammar and correct spelling. 5. The function D(h) = 8e -0.3h can be used to find the number of milligrams D'of a certain drug that is in a patient's bloodstream h hours after the drug has been administered. a. How many milligrams will be present after 4 hours? b. When the number of milligrams reaches 1, the drug is to be administered again. After how many hours will the drug need to be administered?

rite your final answers in a complete proper grammar and correct spelling. 5. The function D(h) = 8e -0.3h can be used to find the number of milligrams D'of a certain drug that is in a patient's bloodstream h hours after the drug has been administered. a. How many milligrams will be present after 4 hours? b. When the number of milligrams reaches 1, the drug is to be administered again. After how many hours will the drug need to be administered?

Functions and Change: A Modeling Approach to College Algebra (MindTap Course List)

6th Edition

ISBN:9781337111348

Author:Bruce Crauder, Benny Evans, Alan Noell

Publisher:Bruce Crauder, Benny Evans, Alan Noell

ChapterP: Prologue: Calculator Arithmetic

Section: Chapter Questions

Problem 10E: Heart Disease In a certain country, the number of deaths due to heart disease decreased from 235 in...

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Heart Disease In a certain country, the number of deaths due to heart disease decreased from 235 in one year to 221 in the next year. What percentage decrease in deaths due to heart disease does this represent?
The number N of beavers in a given area after x years can be approximated by N=5.5100.23x,0x10. Use the model to approximate how many years it will take for the beaver population to reach 78.
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.
Suppose you are interested in uncovering the relationship between snowfall (in inches) in the month of December and the flow rate of Yosemite Falls in April (in cubic meters per second) over the span of years from 2005 to 2010 (inclusive). Further suppose your r-squared is .74 then a valid interpretation of the r-squared would be: Group of answer choices About 74% of the December is snowfall is explained by the April flow rate About 74% of the April flow rate is explained by December snow fall There is a 74% likelihood that December snowfall causally impacts April flowrate The model you estimated has residuals that average .74 in absolute value None of the above are correct
The cost of technology-related products tends to decrease over time, unlike the cost of food, which tends to increase, according to the consumer price index. a) A graphing calculator sells for $184.99 in 2001. How much would it sell for in 2007 if the rate of decrease is 5.5%? b) The cost of a 4-L bag of milk is $3.69 in 2001. How much would you pay for the milk in 4 years if the expected average increase in the consumer price index for food is 3.2%?
Suppose a stock drops in value by 30% one week, then increases in value the next week by 50%. Is the value higher or lower then the value at the beginning of week one? A) no change B) almost the same C) higher D) lower
Housing prices in a particular county have increased by 23.5% over the price of houses five years ago. (a) If $220,000 was the average price of a house five years ago, what is the average price (in $) of a house today? (b) Economists predict that next year housing prices will drop by 5% in this area. Based on your answer from part (a), what will the average price (in $) of a house be next year?
The percentage of employees who cease their employment during a year is referred to as employee turnover, and it is a serious issue for businesses. The following table shows the cost, in millions of dollars, to a certain company for a given employee turnover percentage in a year.
Which of the following describes a situation in which the total distance a baseball player travels is 0 meter from his starting point? The player runs 4 meters forward and then runs 3 meters in the opposite direction. The player runs 3 meters forward and then runs 3 meters in the opposite direction. The player runs 3 meters forward and then runs 4 meters in the opposite direction. The player runs 3 meters forward and then runs 0 meter in the opposite direction.
Chlorine is often added to swimming pools to control microorganisms. If the level of chlorine rises above 3 ppm (parts per million), swimmers will experience burning eyes and skin discomfort. If the level drops below 1 ppm, there is a possibility that the water will turn green because of a large algae count. Chlorine must be added to pool water at regular intervals. If no chlorine is added to a pool during a 24-hour period, approximately 20% of the chlorine will dissipate into the atmosphere and 80% will remain in the water. (a) Determine a recursive sequence an that expresses the amount of chlorine present after n days if the pool has a0 ppm of chlorine initially and no chlorine is added. (b) If a pool has 7 ppm of chlorine initially, construct a table to determine the first day on which the chlorine level will drop below 3 ppm.
Suppose that C(g) represents the cost C, in dollars, of manufacturing g cars. Explain what C-1 (800,000) represents.
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