Narcissa

^it's 2. solve for it f(x)=0. and you get 3/2, round up = 2

AKittka

ah yes now that i think of it i chose the 3rd answer not 3.. thanks.. i skipped this question because i missed the absolute signs and questioned whether 0 is an integer when i knew it was but was wondering why the question was so easy then haha

sweetgirl1991

Does anyone know about the problem sth like k-1. What integer value can k have?

qwerty12

Does anyone remember the exact question of the problem with the sales of 450 and 150?

Azhir

Anyone remember the answer to the one with the HomeRoom classes and Teachers donating books to the library?

Quicksandslowly

^refresh my mind again on that 450 and 150?

^Teachers and library? I don't remember...

pervez

it's funny because I'm pretty sure i got 760+ on the math section, and one of the only questions i was having trouble with (or doubts on) is the one where you have the squiggly graph with 4 x intercepts!

It asks you "if the graph was reflected over the X-axis, how many intercepts would it have?"

Well, if it had 4 to start off with, it would still have 4 if reflected over the X axis yes?

And someone refresh my mind on the question where the slope was (5/4) (can't remember the question) and where the perimeter supposedly equals 24 (can't remember that one either). Picture maybe?

Feed

http://img140.imageshack.us/img140/3880/54568882sy1.jpg

^ Here's the 24 one... (it asked for the perimeter of the whole shape... so 3*8=24.) Do NOT comment on my MS Paint skills.

The other slope problem had to do with coordinate geometry... and I don't remember the EXACT numbers. Sorry.

Quicksandslowly

Lol, Feed you actually took the time to do that? lol...btw I like the colors:P

Feed

^ Why, thankyou. I'm quite artistic, I know! ... Not.

Hey, I'm bored... might as well waste time in MS Paint.

pervez

ohhh yes, i remember that question now! great picture and I got 24

Do you remember the question with circles inscribed within each other? was the answer like 9pi/4?

and this 5/4 slope problem is freakin me out :O I can't remember it

Feed

^ YEP!! They made a whole thread about it:
http://img122.imageshack.us/img122/1304/52487568uj4.jpg

Okay, so you have to find the area of circle B - circle C.
(Completely forget circle A... it's there to confuse you).

Consider Circle B.
Radius: 2.5 units.
So, Area: (2.5)²∏ = 6.25∏ or 25/4∏

Consider Circle C.
Radius: 2 units.
So, Area: (2)²∏ = 4∏

Now subtract C from B.
25/4∏ - 4∏
= 2.25∏ or 9/4∏.

Makes sense?
(Sorry for the ellipses instead of the circles... )

As for the 5/4, it had this variable 't' in it... and there was... OH I remember it.

http://img150.imageshack.us/img150/1807/50798795dq7.jpg

^ I think that's what it was... but I might have manipulated the variables/numbers here and there. But basically that's what it was...

Joe_L514

jeez Feed, bored?

Feed

^ Do not hate on drawing skills + willingness to help other people.

pervez

hrmm, that looks similar to the one where you have to find b and i got b = .5

thanks to TI calculator ^_^