June 2009 - Mathematics Level 2

<p>anyone else get those answers? or remember any others?</p>

<p>yes i did :)</p>

<p>What was the x/z one? Every other answer I agree with</p>

<p>

Does anyone remember the whole question? I remember x/z but now what I got.</p>

<p>What was the x/z one?</p>

<p>Ya i was asking for the question not the answer. Lol</p>

<p>sumthing like x=2y, y=(sumthing), z= sumthing what was x/z
(sorry i dun rememeber the specifics of this one)</p>

<p>what was the sd one?</p>

<p>^^^ choice D (8,10,10,10,12)</p>

<p>what did u guy get for farenheit q?
i got like -24.sumthing</p>

<p>^
That’s correct.</p>

<p>yeah, the -24 something was the answer</p>

<p>k good thanks</p>

<p>Lol I spent 5 minutes of leftover time doing the StdDev question.</p>

<p>I figured out that you can save lists on your TI graphinh calculator and then use them to calculate using the StdDev() function.</p>

<p>I think I got 2 as well… didn’t you get 2x/x for the last step?</p>

<p>i was just wondering why u cudnt make a proportion for the similar triangle problem
like 9/3=x/2 x=6 :frowning:
u guys seemed to use law of sines (and got a dif answer) and i understand that
but why wudnt a simple proportion work?</p>

<p>what was the fahrenheit question?</p>

<p>yeah, 2 for the x/z</p>

<p>farenheit was -24.something</p>

<p>no, what was the question?</p>

<p>

The 6 wasn’t the side they asked for.</p>

<p>The temp question asked when fahrenheit was equal to half of celsius at the same temperature.</p>

<p>(-24.stuff) * (9/5) + 32 = -12.stuff</p>