Carl's car

Today was started off with doing possibly the LAST mental math for this semester!!!!

we corrected question 8 in the booklet.

a) Calculate Carl's monthly payment if she purchases the car and finances it over a period of 5 years.

$557.80

b) carl can lease the car for 375 a month ( including taxes) for a period of 48 months. After this time, the residual value of the car is 40% of the original purchase price of 31920. Calculate the total price including the down payment of 2000 and the lease payments to purchase the car at the end of the lease. Indicate your strategy.

$32768.00

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using the spreadsheet found in the "stuff you can use on the folder" , "mortgage schedule 2"

House price: $300,000

down payment: 10%; $30,000

interest rate: 4.75%

amortization period: 25 year

still working on uploading screen shots and explainations

*chiquitita*

VECTOR TEST REVIEW

Today in class Mr. Max gave us our vector test review, which is for our test that is on MONDAY MARCH 23!!



We are allowed to bring in a piece of looseleaf with whatever we want on it to the test.



Mr. Max directed our attention to the government website where there are old ProvincialExams.

http://www.edu.gov.mb.ca/k12/assess/archives/index.html



The first problem we used as a review was June 2008 written exam, question 13.



The question is Danielle and David are pulling a wagon. Danielle pulls in a direction of N 75 E and David pulls in a direction E 30 S. The resultant force is 80 Newtons due east.



A) Sketch a vector diagram of the forces acting on the wagon, Include all angles. ( 1 mark) Mr. Max reminded us to look at how much the question is worth and evaluate how much you should do. Seeing as this is only for one mark, a 'messy' diagram will suffice as long as you include what is asked for in the question.



B) Determine the magnitude of the force exerted by Danielle. Show your work. ( 2 marks)

hint: use the parallelogram method, because there are two forces acting on one object in different directions.



June 2006 written exam, question 13 is very similar to the question above.



June 2006 written exam, question 12.



A boat on a lake travels a distance of 3km at a bearing of 250. It then turns to a bearing of 155 and travels a distance of 4.5 km.



A) How far is the boat from its starting point? show your work. (2 marks)

(One mark for appropriate strategy and a mark for the correct answer)



B) In what direction should the boat travel to return directly to its starting point? (1 Mark)



June 2007 written test question 3.


Given the two vectors x and y shown below, which diagram correctly shows vector addition?



January 2005 written test question 13



A group of snowmobilers leaves a lodge and travels across a lake at a speed of 40 km/hr for two hours in a direction of N 50° E. The snowmobilers then change direction and travel at 50 km/hr for ½ hour, due south.



A) Calculate the direct distance of the group of snowmobilers from the lodge.Indicate your strategy. (2 marks)



B) A second group of snowmobilers from the same lodge plans to travel to a landmark located 75 km W 25° S. Because of unsafe ice conditions on that part of the lake, the snowmobilers must take an indirect route. Design a route that is 125 km or more that will get them to the landmark. Describe all directions and distances. (3 Marks)





At 3:15 we switched to doing problems from Exercise 4.



Question 8



An aircraft flying horizontally on a heading of 285 is pushed by a wind with a bearing of 15. Angles are measured clockwise from the north. The indicated airspeed of the plane is 300kph. the wind speed is constant at 90 kph.



A) Draw the velocity vectors.



B) After 1 hour and 15 minutes of flight, what will be the aircraft's change in location (nearest half kilometer)?



Exercise 4 Question 5



A river of .62 miles wide is flowing at 6mph. Marie's boat travels at 20mph in still water.



A) in what direction should she point her boat if she wanted to end up going straight across the river (to the nearest tenth of a degree)?



B) To the nearest tenth, what is the actual velocity of Marie's boat relative to the shore?



C) How many minutes will it take her to get across by travelling in this direction?





TEST: MONDAY MARCH 23rd!!!



Have a great weekend, and don't forget to study!



** I am still working on uploading the screen shots**



*Chiquitita*

Doll Clothes to Baseball Parks

Today there was no Mental Math, due to technical difficulties.

Mr. Max did a homework check on Question 2 Problem B from the Design and measurement booklet.

Then Mr.Max showed us how to do the question.

We started by having a crash course lesson about Euklid, as we were creating the piece of fabric.

There are 33 sets of clothes (each 16x9) and each set has 36cm of waste. On the bottom of the fabric there is 2cm of waste and on the side there is 1cm of waste.

*** Be sure not to double count the corner waste.***

There is 248cm outside "scrap" material
and 36cm^2 waste per set
your total waste would be 1,436 cm^2

You pay $10 for the piece of fabric, and you charge $2.49 for each set of clothes.


Homework: Page 5 of 5, Question 3 Part A-Ballpark Park question. DUE MONDAY MARCH 2, 2009

Tomorrow's scribe is *Beckles

Statler and Waldorf

Well a few days ago, Mr.Maksymchuk, (as we all know) came to the conclusion that Semba08 and myself are Statler and Waldorf.

If you dont know who Statler and Waldorf are then he's a little history lesson.

Sratler and Waldorf are two ornery, disagreeable, old men who are known for heckling the Muppet Show cast from their balcony seats in the theatre.

Statler and Waldorf are named after two New York City hotels, the Statler Hotel and the Waldorf-Astoria Hotel. (p.s. Astoria is also a muppet. She is Waldorf's wife, what a surprise!)

They are also rumored to have been modeled after two of Jim Henson's college professors.

Now I don't know how exactly Mr. Maksymchuk came to this conclusion, so its best to ask him that.

I must say it did make for a quite enjoyable class detour.















http://kathrynwithay.wordpress.com/2008/08/12/just-an-observation-whoring-out-your-stars/

I hope everyone has an enjoyable long weekend!

*Chiquitita*

Exercise 5 Question #5

The Question:

Winners at a science fair are determined by a scoring system based on five items with different weights attached to each item. The items and associated weights are the summary of background research- weight 3; experimental procedure- weight 5; research paper- weight 6; project display- weight 8; and, creativity of idea- weight 4. Each project is judge by grading each of the five items on a scale from 0-10, with 10 being the highest. The total score for a project is derived by adding the products of the corresponding weights and points for each item.

a) Create a 1x5 matrix giving the weights of each item. Label it A.

b) Create a 5x7 matrix to show the number of points gained by each contestant. Label it B.

c) What does the matrix product AB indicate?

d) Calculate AB and record it. Summarize the results of the science fair.

How you get there:

a) [3 5 6 8 4]

We arrived at this answer by looking back at the question, and using the weight numbers provided there.

b)

This table is given to you in the question so all you have to do is copy it.

c) The matrix product of AB indicates that it is a 1x7 representing the overall score each person received.

You can arrive at 1x7 by taking the dimensions of the matrix A and matrix B,

[A]=1x5 5x7=[B]

the outer dimensions show what size the answer will be, and the inner show you can multiply it.

d) [A] [B]= [223 231 227 229 220 216 228]

This is done simply by entering in the two matricies into your graphing calculator and multiplying them together in this order. If you multiply [B] [A] it does not work, you will get a totally wrong answer.

The results of the science fair are as follows:

First Place- Jane 231

Second- Kathy 229

Third- Terri 228

Fourth- Bryan 227

Fifth- Peter 223

Sixth- Mary 220

Last Place- Chris 216