WPP #10: Unit L Concepts 9-13- Probability

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WPP #9: Concepts 4-8: Probability with combinations and premutations

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SP #6: Unit K Concept 10: Writing a repeating decimal as a rational number using geometric series

In this student problem we had to create a problem form concept 10. First our problem had to have 2 or 3 repeating numbers and a  whole number before the decimal. After that we had to use the formula a sub infinity equals a sub 1 over 1 minus r. We also had to include the proper notation. The trickest part of these types of problems is that we have to be careful with the fractions. You make to make sure you convert you decimals into fractions correctly or the whole thing will be wrong. Lastly you need to watch out for the number before the decimal. Do not forget to add it at the end of your problem. Thank you for viewing! 

Fibonacci Haiku: Ariana Grande

Twitter

Singer 

Ariana Grande

I love tweeting

Ariana Grande followed me yesterday 

I was so happy when I saw it 

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SP #5: Unit J Concept 6- Partial Fractions Decompostion with repeated factors

In this problem i did an example of partial fraction decompostion with repeated factors. It is pretty much the same as SP #4 but this time it has repeated factors. After i found the systems i plug in into a matrices box. I used the rref feature in my calculator to find my answer. I checked it by plugging my answer back in to see if it came out the same. The trickest part of this concept is that you have to remember what to do when there is repeated factors. For repeated factos you MUST count up the powers and include the factors as many times as the exponent. Other than that this problem was very similar the concpet 5. You follow all the same stpes except we add that repeated factor step. Thank you for reading!

SP #4: Unit J Concept 5- Partial Fraction decomposition with distinct factors

In this student problem, I had to make up my own example of a partial fraction decomposition with distinct factor. I first had to compose my problem I made. Then i had to decompose it but now with replacing the top with letters according to the amount of facotrs i have on the bottom. Then i had to get a least common denominator for the three fractions by multiplying each part by what is missing. After i grouped them together and set it equal to the numerator that we first started with. Lastly we solve the equations by using matrices and the rref feature in our calculator and plus it back in. The most trickiest part about these types of problems is having so many variables. You can get confused with all of them so keep count on how many you are suppose to have. Another thing that was tricky is knowing how to use matrices because all these problems are related. One thing i found interesting was the rref feature gives us the answer so we know our work is correct. Other than that it was really simple. Thank you for watching! *Sorry i forgot to set it equal to the numinator in the 2nd picture :(

SV #5: Unit J Concepts 3-4- Solving three-variable systems with Guass-Jordan elimination/ matrices/ row-echlon form/ back-subsitution

In this video I explain DP problem number 3. I explained how to solve a three-variable system with Guassian Elimination and how to check your answer with the rref feature in your calculator. The trickest part in these types of matrix problems is being able to know what row to use. To make my life easier I just use the row on top so I won't get confused. It is really hard when you start mixing up the rows because you will get confused. Another thing that is difficult about these types of problems is making sure you know how to use your matrix feature. This feature is really helpful when checking your answers so if you do not know about it, you should. Other than that matrices are pretty simple if you do Mrs. Kirch's 4 step way of doing. One more thing, ALWAYS ALWAYS ALWAYS show your work. You need to show all your work so if you mess up, you will know where to go back and change something. Thank you for watching.