Tuesday, February 23, 2016

Example of a periodic function

Tidal waves are an example of a periodic function.  As the moon pulls the waves the tide goes up, when the moon is farther away they fall down.  This causes the wave shape in the tides, which is the same shape as a periodic function on a graph.  The waves, like the periodic function, have an amplitude and period.

Sunday, November 15, 2015

Red Blood Cell project- exponential decay

My presentation is on the amount of red blood cells that die off in a 4 month period.  Every 4 months the body reproduces new cells to compensate for the ones that have died.  So I am finding the rate of exponential decay of the cells that dies over the four month period when the body has 30 trillion.  The rate of decay for the cells is 22.8%.  The equation is y=30 trillion(1-.228)t.  I have discovered that since we have so many blood cells, and they decay as such a large rate our body must produce 684,000,000,000 blood cells every 4 months.

exponential decay example

Luna has created a cupcake bakery.  Her sales have been decreasing by .66% each year over the last 5 years.  If she currently makes 50,000 dollars what will she be making in 15 years.

Tuesday, November 3, 2015

Phoebe's income- example of exponential growth

Phoebe has published a book and over the last 4 years the profit from the book has grown 2 percent per year.  If the current profit is 55 million dollars, what will it be in 10 years?

Thursday, August 27, 2015

My linear programming problem

You are the owner of a small cupcake store, the mathematical cupcake shop, and you make two kinds of cupcakes, soft vanilla and crunchy vanilla.  Baking a set of soft cupcakes takes 3 cups of cupcake mix and 6 cups of milk.  While baking a set of crunchy cupcakes uses 3 cups of cupcake mix and 3 cups of milk.  In stock you have about 20 cups of cupcake mix and 18 cups of milk.  You normally make $6 per set of soft cupcakes and $4 per set of crunchy cupcakes.  How many sets of each type of cupcake should you make to get the most profit?

Friday, August 14, 2015

Hello Algebra 2

I'm Maddy Williams, part of the design team on the Newspaper Staff in J+C, nutella lover and music player.