Video Gallery

Ap exam #5 2012

Go to Video Gallery Added Jan 30, 2013 •

Copy this URL:
Embed code:	<iframe class="edlio-embed-player" type="text/html" width="640" height="360" src="//www.foshaylc.org/apps/embed/?v=35731" frameborder="0" allowfullscreen></iframe> Change dimensions

Go HD

Show Transcript

gorilla with a baby bird games the difference between its adult weight and it's only because you're on the bed Expressway 50 years ago a disturbance at time to Gaithersburg MD 1 * 100 - 3 y equals 3 sugar-free Foods on Broadway initial condition Bozo equals formation is at time t 0 when the British persuade its weight is 20 grams  which me the bird was just born here to wait with 20 grams and that is our initial condition which is being 0 is equal to 20 the differential equation 1 * 100 - B is also important to find different ways of the baby bird of the specific time please don't forget that the the baby bird is measured in grams and these are you  or when it weighs 70 grams like I said before that's differential equations used to find the rate at which a baby bird is the next step is to plug in 40 and 70 into that equation when doing that you get two equations b b over d t is equal to 1/5 * 100 - 40 a video of ET and equal to 1 * 100 - 70 because you plug into each if an equation equation you get DB over these equal to 1/5 * 100 - 40 which will give you one V 61 + x Dixie you got 12 grams per day no you move on to the equation 70 + you got 1/5 100 - 70 which will give you one fifth times 30 and when you do 1/5 and 30 you get 6 grams 12 is greater than 6 there for the baby bird games weight faster when it weighs 40 grams instead of 30 Barbie bird the original Square the second derivative in terms of being cannot resemble we go back to the French equation z b over d t equals 1/5 * 100 - 8 smiling uses property and we are last to West d d over d t equals 20 - 150  Boeing find the derivative of this equation leaving us with -1/5 TV / diseases find our second derivative tell us in the differential equation to TV for wedding cakes giving us this equation second derivative is equal to what's 1/5 * 1/5 * 100 - 8  multiply -1/5 x 1 what equation second derivative equals -1/25 * 100 - 2 the second version of its negative it is counted down there for the graph of each cannot resemble the given graph because the given glass Uncle Buck so your reason it will be that the second derivative is concave down and the portion of the graph is concave up there for backgammon isn't does not resemble the second derivative cartoon version of able to find the perfect solution to the differential equation with initial initial condition zero equals 20 will you start the differential equation DV over DT equals 1/5 times 100 - B first want to get rid of rdt by multiplying BT both eyes because what you do to one side you do to other so you get DB equals 1/5 * 100 - BDT next to divide 100 - because we only want rdt and constant on one side so we get one over mine is bdb equals 1/5 DT next week integrate both sides we are less with negative Ln absolute value 100 - be closed absolute value 150 + C we get the negative  nothing we get them who in front of the Ln since the derivative of 100 - B will be negative One DB now we divided how do you spell -1  after we divided by -1 we get Ln absolute value of 100 - equals a solute value equals 150 plus c  in order to get rid of Ellen we need to see both eyes leaving us with a hundred mine b equals e to the negative 150 x e-2c this commune written as a hundred minus b equals c e to the negative 1/5 teeth now we use the initial condition given by 0 equals 20 we plug in 40 and 24 beef now we tell you into our equation giving us a hundred minus 20 equals c x E20 power now we saw 100 - 20 which is 80 equal see now that we nor see we tell you into equation which is 100 - B equals 80 e to the negative 153 subtract 100 from both sides in order to have lights of leaving us with negative P equals 80 to the negative 1 50 - 100 Weatherlight of -1 from both sides so we can have positive be leaving us with b equals -80 to the negative 1/5 + 100

Video Gallery

Ap exam #5 2012

Popular Videos