SAT Prep: Test 1 Section 3 Part 4

[xoaclxo]

uur AMAZING ;] ur doing a great thing right here

[hotpinkbxchic]

At problem 11 they asked for the length not the area. So I'm confused

[khyentse8]

@hotpinkbxchic The circumference is the outer ring, therefore it is the same thing

[Shadowriku40]

@hotpinkbxchic You cannot measure area with length. Area is length squared.

[Oecleus]

At problem 12, I do not understand how you can just assume that the pattern is add two then multiply by negative one. Based off the 3 terms you could say that the pattern is 2x-1 for the first term then -10 to the second term.

[nolaparis]

@Oecleus It's given in the original problem, it would be clearer if you owned the book :]

[2010macmillan]

can i just find the circumference of one circle

[eagleduzt]

I thought it was pi x R squared = circumfrence >.< damnit

[sinevesterdeus]

is there another way to do #12 ?

[blackdranfire]

For problem number 12 cant you find the linear equation y = 23x + 1 and then evaluate the values for a and b find them and then add them? I got the same answer I just want to make sure it was not just a coincidencce.

[ra3don92]

Don't know if you did this on purpose or not, but in the description, it says 11-12, when it includes part of 13. Could throw some people off.

[stuntburnyaya]

hey for problem 11

cant u just guess that a is 23

and b is 25

and just add them toghether to get

48??

[Ancientlordx]

how do u gues a is 23 and b is 25??

[worldround]

thank you very much very helpful

[punkzaznboi]

THanks

[gamemaster014]

looks like a yin yang symbol

[chessoriginal]

Thanks for your work on these videos!