Compilation of May Math Answers

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

<p>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</p>

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

<p>Does anyone remember the exact question of the problem with the sales of 450 and 150?</p>

<p>Anyone remember the answer to the one with the HomeRoom classes and Teachers donating books to the library?</p>

<p>^refresh my mind again on that 450 and 150?</p>

<p>^Teachers and library? I don't remember...</p>

<p>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!</p>

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

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

<p>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?</p>

<p><a href="http://img140.imageshack.us/img140/3880/54568882sy1.jpg%5B/url%5D"&gt;http://img140.imageshack.us/img140/3880/54568882sy1.jpg&lt;/a&gt;&lt;/p>

<p>^ 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. :p</p>

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

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

<p>^ Why, thankyou. I'm quite artistic, I know! ... Not.</p>

<p>Hey, I'm bored... might as well waste time in MS Paint. :p</p>

<p>ohhh yes, i remember that question now! great picture :p and I got 24</p>

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

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

<p>^ YEP!! They made a whole thread about it:
<a href="http://img122.imageshack.us/img122/1304/52487568uj4.jpg%5B/url%5D"&gt;http://img122.imageshack.us/img122/1304/52487568uj4.jpg&lt;/a&gt;&lt;/p>

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

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

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

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

<p>Makes sense?
(Sorry for the ellipses instead of the circles... ) :)</p>

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

<p><a href="http://img150.imageshack.us/img150/1807/50798795dq7.jpg%5B/url%5D"&gt;http://img150.imageshack.us/img150/1807/50798795dq7.jpg&lt;/a&gt;&lt;/p>

<p>^ 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...</p>

<p>jeez Feed, bored?</p>

<p>^ Do not hate on drawing skills + willingness to help other people. :p</p>

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

<p>thanks to TI calculator ^_^</p>

<p>I ran out of time on that one, and I can't believe it. :(
Thanks for reminding me.</p>

<p>I don't remember that 5/4 one, what was it?</p>

<p>^ Hello? I drew an image ... Last post.</p>

<p>" <a href="http://img150.imageshack.us/img150/1807/50798795dq7.jpg%5B/url%5D"&gt;http://img150.imageshack.us/img150/1807/50798795dq7.jpg&lt;/a&gt;&lt;/p>

<p>^ 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..."</p>

<p>Was that the whole one with the circle and you had to use the radius to figure out what t change was in the x and y? (I think it was) That would make more sense as a pic</p>

<p>But yeah, I put that :D which is good</p>

<p>^ No, it wasn't a circle... It was a weird triangle... I know because I got confused with this first, see circle/right triangles are easy with coordinate geometry. But this weird triangle confused me. Later, I figured it was just common sense.</p>