Sunday, December 18, 2011
Wednesday, December 14, 2011
Tuesday, December 13, 2011
Scale can be expressed as a ratio, as a fraction, as a percent, in words or as a diagram.A scale of 1:50 means that 1 unit on the diagram is equal to 50 units of the actual object.
Scale Diagram: is similar o
he actual or object. It main
are two ways to find a missing length of proportiontain proportion, the diagram may be longer or smaller than the actual object.
Example One: Use scale to determine the Actual Length of an Object.
For a scale of 1:14 and a
diagram measuring 5.5c
m set the proportion.
SCALE: is a comparison
of two objects; the actual size and its diagram.
Scale can be expressed as a ratio, as a fraction, as a percent, in words or as a diagram.
A scale of 1:50 means that 1 unit on the diagram is equal to 50 units of the actual object.
SCALE DIAGRAM :Is similar or the actual or
object. It maintain proportion, the diagram may
be longer or smaller than the actual object.
There are two ways to find a missing length of proportion
For a scale of 1:14 and a diagram measuring 5.5cm set the proportion.Example One: Use scale to determine the Actual Length of an Object.
se it is easy to find the relationship of 1 to 5.5 it easy to find x, simply multiply 14 by 5.5 to find x=77cm- So the actual object is 77cm.
Example Two: Use Measurement to find Scale.
Monday, December 12, 2011
Saturday, December 3, 2011
My text book question is 27 on 2.4
"The surface area of a cube is 100 cm squared. Determine the edge length of the cube, to the nearest tenth of a centimetre."
A CUBE has 6 faces.
Since I knew that, I divided 100 cm squared by 6 to give me one face.
That got me 16.66 cm squared.
Since I wanted to get rid of the squared, I did a square root of a 16.66.
For that, I got 4.082.
I rounded that to the nearest tenth, and I got 4.1.
I checked at the book, and I got the same answer.
Thursday, December 1, 2011
*You need to know the formula's for 3.4
Bacteria triples every 15 minutes.
Start with 50 bacteria.
The coefficient is 50.
In one hour: 50(3^4)
In three hours: 50(3^12)
t hours: 50(3^4t)
Question from yesterday:
3.4- Show You Know
Check Your Understanding
Practice odd or even
Don't forget to do 3.3 if you're not done.
Don't forget to start your stash it.
Go on MANGAHIGH!
Jocelyn, it's your turn to do the blog.
Wednesday, November 30, 2011
Monday, November 28, 2011
Thursday, November 24, 2011
The Faster Way
Product Law: When the bases are the same, simply add the two exponents to get the new power.
The faster way..
Quotient Law: When the bases are the same, simply subtract the two exponents to get the new power.
When a product is raised to an exponent, you can rewrite each number in the product with the same exponent.
Power of a quotient: When a quotient is raised to an exponent, you can rewrite each number in the quotient with the same exponent.
Wednesday, November 23, 2011
Power of zero it will always be 1
any number or variable to an exponent of 1 is always itself
any exponent of 2 is always a perfect square and always an area
anything to an exponent of 3 represent perfect cube and represent volume
pg 92-95 3.1 Textbook and Homework book
Play Manga High
Apply Odd or Even
Extend 22 and 23