A vendor who sold bread at farmers' markets counted the number of leftover loaves at the end of each day. Loaves of leftover bread Day Leftover loaves Tuesday 7 Wednesday 6. Thursday 6. Friday Saturday 5 According to the table when was the rate of

A vendor who sold bread at farmers' markets counted the number of leftover loaves at the end of each day. Loaves of leftover bread Day Leftover loaves Tuesday 7 Wednesday 6. Thursday 6. Friday Saturday 5 According to the table when was the rate of

Name: 12:05ul LTE O88A vendor who sold bread at farmers' marketscounted the
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Description: 12:05ul LTE O88A vendor who sold bread at farmers' marketscounted the number of leftover loaves at theend of each day.Loaves of leftover breadDayLeftover loavesTuesday7Wednesday6.ThursdayFriday1SaturdayAccording to the table, when was the rate ofdec

Elementary Geometry For College Students, 7e

7th Edition

ISBN:9781337614085

Author:Alexander, Daniel C.; Koeberlein, Geralyn M.

Publisher:Alexander, Daniel C.; Koeberlein, Geralyn M.

ChapterP: Preliminary Concepts

SectionP.CT: Test

Problem 1CT

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The analysis of tooth shrinkage by C. Loring Brace and colleagues at the University of Michigan’s Museum of Anthropology indicates that human tooth size is con-tinuing to decrease and that the evolutionary process has not yet come to a halt. In northern Europeans, for example, tooth size reduction now has a rate of 1% per 1000 years. a. If t represents time in years and y represents tooth size, use the condition that y = 0.99y0 when t = 1000 to find the value of k in the equation y = y0 ekt. Then use this value of k to answer the following questions. b. In about how many years will human teeth be 90% of their present size? c. What will be our descendants’ tooth size 20,000 years from now (as a percentage of our present tooth size)?
The analysis of tooth shrinkage byC. Loring Brace and colleagues at the University of Michigan’s Museum of Anthropology indicates that human tooth size is continuing to decrease and that the evolutionary process has not yetcome to a halt. In northern Europeans, for example, tooth sizereduction now has a rate of 1% per 1000 years.a. If t represents time in years and y represents tooth size, usethe condition that y = 0.99y0 when t = 1000 to find thevalue of k in the equation y = y0ekt. Then use this value of kto answer the following questions.b. In about how many years will human teeth be 90% of theirpresent size?c. What will be our descendants’ tooth size 20,000 years fromnow (as a percentage of our present tooth size)?
A CI is desired for the true average stray-load loss ? (watts) for a certain type of induction motor when the line current is held at 10 amps for a speed of 1500 rpm. Assume that stray-load loss is normally distributed with ? = 2.2. (Round your answers to two decimal places.) (a) Compute a 95% CI for ? when n = 25 and x = 53.7. , watts(b) Compute a 95% CI for ? when n = 100 and x = 53.7. , watts(c) Compute a 99% CI for ? when n = 100 and x = 53.7. , watts(d) Compute an 82% CI for ? when n = 100 and x = 53.7. , watts(e) How large must n be if the width of the 99% interval for ? is to be 1.0? (Round your answer up to the nearest whole number.)n = You may need to use the appropriate table in the Appendix of Tables to answer this question.
Suppose that the value of a yacht in dollars after t years of use is V(t)=300000e^(−0.12t). What is the average value of the yacht over its first 18 years of use? V ave =____________ $
11.Suppose that during a controlled experiment, the temperature in a test tube attime t is rising at a rate of 6t^2+2 degrees centigrade per minute. If the initialtemperature is 20°C, what is the temperature in the test tube after 10 minutes?
15. As x increases uniformly at the rate of 0.002 feet per second, at what rate is the expression (1 + x) to the 3rd power increasing when x becomes 8 feet?
A team of medical researchers determined that t days after the epidemic started N(?) = 10t^3 + 5t +√t people would be infected for 0 ≤ t ≤ 20. At what rate did the infected population increase on day 9?
The following table gives the total endothermic reactions involving sodium bicarbonate Final Temperature Conditions Number of Reactions 266 K 13 271 K 60 274 K 92 Assume that reactions are independent. What is the mean of the number of reactions until the first final temperature is less than 272K? Report answer to 3 decimal places.
a tank in which 1 gram of chlorine is initially present in 80.38 m3 of a solution of water and chlorine. A chlorine solution concentrated at 1.49 g/m3 flows into the tank at a rate of 3 m3 /min, while the uniformly mixed solution exits the tank at 7 m3 /min. What will be the amount of chlorine present in the tank after 1 minute?
In an oil refinery, a storage tank contains 2000 gal of gasoline that initially has 100 lb of an additive dissolved in it. In preparation for winter weather, gasoline containing 2 lb of additive per gallon is pumped into the tank at a rate of 40 gal/min. The well-mixed solution is pumped out at a rate of 45 gal/min. How much of the additive is in the tank 20 min after the pumping process begins (Attached Figure 16.7)?
The best fit line for a time series, {yt : t = 1,2,...,518} is found to be f (t) = 3.4025t + 199.3715. Based on the best fit line, what is the forecast value, when t = 518?
In a chemical manufacturing plant, a certain type of chemical B is producedthrough reactions in chemical A. Through observation, the officers on duty have noted that the rate of conversion from chemical A to B in proportion to the amount of chemical A present at any time, further investigation has revealed that 10% amount has been converted in first five minutes.a) The plant manager wishes to know the percentage of chemical A that will be converted in 20 minutes.b) The plant manager wishes to know the time it will take to convert 60minutes of chemical A.