Today we kicked off the class with the mental math! Then we seen Mr. Max's srceen and it showed what he was looking at. We seen costco, and an email and other tabs open. So we asked howcome we aren't allowed to look at our emails but you are. He responded that he was looking at them during the afternoon break, and insisted that he would show us. The email was about cell phones and if they were evil or good in schools. What do you think? (Feel free to respond)
In my opinion I believe that cell phones should be allowed in school premissies, but i believe that in classes the cell phones should be either turned off or turned on silent, NOT VIABRATE, because some phones take such a long time to reboot and it also wastes a lot of battery power to turn cell phones on and off all the time. But if the phone was turned onto silent, the student wouldn't know whether or not if they have a new message or not. So therefore I think cell phones should be allowed in schools and in classrooms as long as the cell phone is on silent.
Next, in class we exchanged and corrected our homework assignment we had assigned for the weekend. The assignment was done only on graph paper with a ruler, pencil, and done to scale. The assignment was graded out of; scale stated, correct portrayal strategy, correct magnitude, and correct direction. The assignment was out of four marks total.
Next, Mr. Max assigned a new assignment. The assignment was Exercise three, question three, due for tomorrow, and that was all we did this class, so have a great night!
Showing posts with label homework assignment. Show all posts
Showing posts with label homework assignment. Show all posts
Monday, March 9, 2009
Tuesday, February 10, 2009
homework assignment
Exercise five, Application of matrices
Parsonsc and I, worked together on our assignment, and are posting question number 1.
There were four parts to this question.
a) Creating a matrix that displayed the weights, (which were given to us.)
A= [5 6]
b) Writing the table as a matrix (which was also given)
B= [5 7]
[3 9]
c) Finding the total vitamin content of the cheese and meat, we multiplied matrix A by matrix B, and got our answer.
C= [A]*[B]
C=[43 89]
d) Determining the cost of the total purchase. We did this by multiplying the amount of cheese by it's price per kilogram, and the meat by it's price per kilogram.
cheese= 5kg * $2.25= $11.25
meat= 6kg * $3.50= $21.00
The total purchase costs $32.25.
Parsonsc and I, worked together on our assignment, and are posting question number 1.
There were four parts to this question.
a) Creating a matrix that displayed the weights, (which were given to us.)
A= [5 6]
b) Writing the table as a matrix (which was also given)
B= [5 7]
[3 9]
c) Finding the total vitamin content of the cheese and meat, we multiplied matrix A by matrix B, and got our answer.
C= [A]*[B]
C=[43 89]
d) Determining the cost of the total purchase. We did this by multiplying the amount of cheese by it's price per kilogram, and the meat by it's price per kilogram.
cheese= 5kg * $2.25= $11.25
meat= 6kg * $3.50= $21.00
The total purchase costs $32.25.
Exercise 5: Question 2
a) The weekly production of kitchen and bedroom suites:
Factory A: 3* [30/40] = [90/120] ~note: these matrices are 2 by 1
Factory B: 8* [10/15] = [80/120] ~these are also 2 by 1
There are three factories of type A so I multiplied the production for one week in a factory by three to represent the amount produced in all three factories of this type. The same was done to the second type of factory which has eight factories.
To find the total amount of suites over both factories I now add the amounts that I acquired in the first step:
[90/120] + [80/120] = [170/240] ~again 2 by 1 matrices
Therefore, in one week, 170 kitchen suites are produced and 240 bedroom suites are produced.
b) The total market value of the goods purchased:
[170 240] * [1500/2200] = [783,000]
This says that 170 kitchen suites and 240 bedroom suites multiplied by their respective prices ($1500 per kitchen and $2200 per bedroom) gives us the total value of all the suites. Note, that when I did this, the number of suites was in a 1 by 2 format and the prices are in a 2 by 1 format so that multiplying could be achieved.
Factory A: 3* [30/40] = [90/120] ~note: these matrices are 2 by 1
Factory B: 8* [10/15] = [80/120] ~these are also 2 by 1
There are three factories of type A so I multiplied the production for one week in a factory by three to represent the amount produced in all three factories of this type. The same was done to the second type of factory which has eight factories.
To find the total amount of suites over both factories I now add the amounts that I acquired in the first step:
[90/120] + [80/120] = [170/240] ~again 2 by 1 matrices
Therefore, in one week, 170 kitchen suites are produced and 240 bedroom suites are produced.
b) The total market value of the goods purchased:
[170 240] * [1500/2200] = [783,000]
This says that 170 kitchen suites and 240 bedroom suites multiplied by their respective prices ($1500 per kitchen and $2200 per bedroom) gives us the total value of all the suites. Note, that when I did this, the number of suites was in a 1 by 2 format and the prices are in a 2 by 1 format so that multiplying could be achieved.
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