4) Below is the graph of daily sales in thousands of dollars for the first 6.5 months that a product is onthe market.0 corresponds to Jan. 1 2017, so 6 corresponds to July 1 2017.Mthousandsof dollars20Daily sales 15in10Time in monthsa) Approximate the date where daily sales are increasing the fastest.b) Estimate how quickly daily sales are increasing on that date.c) Approximate the date where daily sales are decreasing the fastest.d) Estimate how quickly daily sales are decreasing on that date.

Answered: Image /qna-images/answer/cfe32329-b6fb-4d98-9d44-4acba49fcbc6.jpg

Answered: 4) Below is the graph of daily sales in…

Advanced Engineering Mathematics

10th Edition

ISBN:9780470458365

Author:Erwin Kreyszig

Publisher:Erwin Kreyszig

Chapter2: Second-order Linear Odes

Section: Chapter Questions

Problem 1RQ

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8) The population of Kenya was 30.7 million in the year 2000 and 38.3 million in 2010. a) Find the growth rate constant k for the exponential function that models Kenya's population f years after the year 2000. Let 0 represent the year 2000. Round to the nearest ten-thousandths place. b) Use the function from part a) to predict the population of Kenya in 2025. Round to the nearest tenth of a million. c) Use the function from part a) to predict what year the population of Kenya will reach 100 million.
The number of computers infected by a virus t days after it first appears usually increases exponentially. In 2009, the “Conflicker” worm spread from about 2.4 million computers on January 12 to about 3.2 million computers on January 13. A).Find the exponential growth rate k and write an equation for an exponential function that can be used to predict the number of computers infected t days after January 12, 2009. B).Assuming exponential growth, estimate how long it took the Conflicker worm to infect 10 million computers.
Personal care aide is an occupation that is growing quickly. Assume that, in a certain region, there will be a need for 195,686 personal care aides in 2024, a growth of about 29% over 2014 levels. How many personal care aides were there in this region in 2014?
Which one of the following method of depreciation calculates depreciation expense in early years than in later years? a. Sum of the Years-Digits method b. Straight line depreciation c. Units of production method d. Written down value method
A principal amount of $375 is placed in a savings account that earns 8% annual simple interest. Which graph best models the growth of the account balance.
What is the formula for calculating growth rate?
From the figures, calculate the net population growth rate. Show your working.
1. Company A has 100 stores and adds 50 new stores per year. Company B has 100 stores and increases the number of stores by 50% per year. a. Write a function representing the growth of Company B. b. How many stores will Company B have after 4 years assuming the same growth rate? Show your work.
1) If a bank account compounds continuously, and money in the account doubles in 9 years, find the APR. Write APR as a percent. Have 4 decimal places in your answer.
Do not know how to do
The sales of a company rose to Rs. 120,000 in the month of January to Rs. 130,000 in the month of February while the seasonal indices for these two months were : 120 and 150 respectively. Was such an increment in sales satisfactory ? If not, what should have been the sale in the month of February to keep pace with the seasonal index.

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