## Proportional reasoning review: similar polygons

The questions that I didn’t understand were 3 a) and b) in the text on page 157.

At first I had no clue what to do but as time went on I learned how to do these questions

#1 you get two letters that are on the same ligne so in a) I would take AE that = 7.5

#2 then you go to the smaller one and do the same thing with the same side so JN that = 2.5

#3 After that you do 7.5 over 2.5 in a fraction and you divide them

#4 Then you do the same thing with another side so ED and NM

#5 12 over 4 and you divide them and there’s your answer, if the two numbers you got were the same then it’s equal but if not then there not equal.

## Math 9 Midterm Review: exponents-order of operations

B)First you work inside the brackets doing -5*-5= 25 then you take that 25 and times it by 6 which gives you 150

D)Again you work inside the bracket and do 4*4*4= 64 then again you take the 64 and times it by -7 that gives you -448

start the video at 5:15

## Rational Numbers Review Post

$\frac{-1}{2} \times \frac{3}{4}$$\frac {-4}{-5}\div \frac{1}{4}$

$\frac{-3}{8}$$\frac{-4}{-5} \div \frac{1}{4}$

$\frac{-3}{8}$$\frac{-4}{-5} \times \frac{4}{1}$

$\frac{-3}{8}$$\frac{-16}{-5}$

$\frac{-3}{1}$$\frac{-2}{-5}$

$\frac{15}{-5}$$\frac{-2}{-5}$

$\frac{17}{-5}$ = $\frac{5}{2}{-3}$
Sorry but I couldn’t find a way to make the -3 go on the other side