Circle Formulas

c=3.14d
c-2 3.14 r
d=2r
a=3.14 r squared

definitions

A spread sheet organizes data in colums and rows.

Area is measured of space a two dimensional shape covers

Sectors of circle graphs are made from central angles

Opposite Integers- have the same numeral but different signs e.g. (-4,+4)

Probability

Experimental Probability- actually doing the trails
Theoretical Probability- what you expect to happen


Probability

Favourable outcomes over possible outcomes
Example of theoretical probability

Transformations

Tranformations:

Translation- slide along a straight line
Rotation- turn about a fixed point
Reflection- mirror image

You need to know...

(+,+)- Quadrant I
(-,+) Quadrant II
(-,-) Quadrant III
(+,-) Quadrant IV

Math H.W. Booklet pg.132-133

1) Equations can be solved in several ways.

a) Solve by inspection, using mental math.
b) Model the equation, using balance it.
c) Isolate the variable by performing the opposite operation on both sides of the equal sign.

2) To check the solution, substitute your answer into the equation. The solution is correct if the left side of the equation is equal to the right side.

Numerical Coefficient

Numerical Coefficient- a number that multiplies the variable

Ordering Fractions

Fraction- a number that represents a part of a whole

Variables & Expressions

Variable- a letter that represents an unknown number
eg. x,a,n

Expression- any single number or variable or combination of operations involving numbers and variables.

eg. 5, n, 8t, x +1, 2y -7

Number of the day

# 3978.654

Question # 2

Write it in expanded form:
3000+900+70+8+0.6+0.05+0.004

Ascending and Descending

Ascending means increasing. (up)
Descending means decreasing. (down)


http://www.mathsteacher.com.au/year7/ch02_power/06

Rule for 7

Take the last digit in a number.

Double and subtract the last digit in your number from the rest of the digits.

Repeat the process for larger numbers.

Example: 357 (Double the 7 to get 14. Subtract 14 from 35 to get 21 which is divisible by 7 and

we can now say that 357 is divisible by 7.

Rule For 2

All even numbers divisible by 2

Even numbers end in

0,2,4,6,8

Odd numbers send in

1,3,5,7,9

Math HW pg. 46-47

for the Homework on page 46 question 4)

Math Homework/Textbook

For the textbook pg. 137 Question number 5









5. Use a Calculator to change each fraction to a decimal number. Round to the place value indicated.

Order of Operations

(this is the image)

link/video

Step 1 you must do 4x3 first put the answer below that, then you bring what's left down

Step 2 you must do 12 divided by 2, then put the answer below, then bring what's left down.

Step 3 you must do the last one 12 + 6 and the answer is 18 box the answer, and put it below 12+6. Your done.