Find an article in a newspaper or magazine (or the online equivalent) describing a recent study in which the researchers collected data through observation or an experiment to draw a conclusion. A simple poll (like “43% of Americans like to eat sushi”) is not sufficient; you should be looking for something describing a significant research study. Some examples (don’t limit yourself to these):

an experiment testing a new drug or medical procedure

a study linking a food or exercise with causing or reducing the risk of a disease

a study about how some new teaching approach improves learning

a study about how people behave (example: a study showing incentives can cause us to be less efficient)

NOTE: If your article does not give any information about how the statistics/data were obtained, find a different article or dig deeper. Often, in a “popular interest” article, they will provide a link at the end to the scientific paper on which the article was based.

Give a brief summary of the article’s findings (statistics) (5 pts)

Discuss whether the article provides enough information to determine the validity of the (statistical) conclusions (5 pts)

Whether there is information that would be useful that was left out of the article (5 pts)

A list of things that are missing from the article that would help you determine the validity of the study (4 pts)

Be sure to cite the source of the article that you base this on. Include the web address to the specific article if the article is online. Include the article title, source, and date if the article is not online. (+1 pts for including, -10 pts if missing)

## Systems of equations are used in many cost models in the real world. Here is an

Systems of equations are used in many cost models in the real world. Here is an example scenario for you to consider.

Suppose you are running a carnival. You are selling hamburgers and sodas. A hamburger is $1.75 and a soda is .75.

You expect to make a total of $117.50 for the day

You also plan to sell 120 hamburgers and sodas

How many sodas and hamburgers will you sell each?

Suppose you decide to change the price ratio between hamburgers and soda’s so that they produce a more equal consumption of hamburgers and sodas.

What would you change the price to for each and why?

What would be the new amount of hamburgers and soda each at your price points?

For your discussion, you are asked to provide an example like the one presented here related to your profession (past, present or future). Any other example you come up with could work as well. Use the questions and prompts for the example shared above to help in formulating and formatting your example. Be sure to include your calculations in your example.

Please be sure to validate your opinions and ideas with citations and references in APA format.

## https://youtu.be/sI1C9DyIi_8 Math for Liberal Arts Workbook Mathematical Models:

Math for Liberal Arts Workbook

Mathematical Models: Exponential Functions

Arithmetic, Population, and Energy

Professor Bartlett

As we watch the video of Professor Bartlett’s lecture on Arithmetic, Population, and Energy take

notes. Particularly, pay attention to his answers to the following questions. You will not be asked

to address the math techniques.

1. What does Doctor Bartlett claim is “the greatest shortcoming of the human race”?

2. What is meant by ‘steady growth”?

3. How long does it take for a quantity to double if it is growing steadily at 5% per year?

4. How long does it take for a quantity to double if it is growing steadily at 7% per year?

5. Why is this sobering: “Every time a growing quantity doubles, it take more than you have

already used up to that point”?

6. How can he claim that “zero population growth will happen”?

7. When you have bacteria in a bottle and the bottle is 1/2 full, what time is it?

8. How much time does the enterprising bacteria buy for themselves by finding 2 new bottles?

9. What is the analogy that Professor Bartlett wants us to recognize when he talks about bacteria?

Write an essay about this video.

• summarize his main points

• Include points or ideas that you found most interesting, surprising or alarming.

•Be sure to include references to the math he employs, the problems he brings up, and what you learned.