<p>Oh dipole, for the d 4.7 question I agree with you, I think there was some other one where I had II and III.</p>
<p>So far I think I have an 800 (although probably not on CR…)</p>
<p>(2.4<em>10^x)+(3.6</em>10^y) = 3630
What was x+y?</p>
<p>5.</p>
<p>You need to add 3600 + 230 to get the answer.</p>
<p>did anyone get the question which involved t/2 and t and 12 hours or something like that? If so, can someone please explain it?</p>
<p>I believe it was the last math MC question on my test.</p>
<p>Yeah
4ax^2-bx+4c
f(1)= 4a(1)^2 -b(1) + 4c
4a -b +4c</p>
<p>f(-1)=4a(-1)^2 -b(-1) + 4c
= 4a +b + 4c</p>
<p>So F(1) + F(-1) = 4a + 4a + b + (-b) + 4c +4c = 8a + 8c = 8(a+c) = 8(15) = 120</p>
<p>
Agreed.</p>
<p>
From what I recall: One pump drains a pool in t hours. Another pump drains the pool in t/2 hours. Together, each working at full capacity, they drain the pool in 12 hours. What is t?</p>
<p>Yay, I got the 120 one right! I finished the problem and filled it in exactly a second before the guy called time LOL.</p>
<p>Does anyone remember the answer to a question where the choices were:
a) something
b) 9
c) 18
d) 81
e) something? Sorry to be so vague - I can’t even remember the question, I guessed so blindly. I think it was the second to last question in a section.</p>
<p>What did you guys get for the surface area of the block thingy?</p>
<p>I answered 45 questions:/ and i know i got 2 wrong. What do u think my score would be? 650?</p>
<p>yes, but what’s the answer to that Billy?</p>
<p>5 errors, 2 omits. 700? maybe?</p>
<p>if da curve is loving lol</p>
<p>peachiemonkey, I got 81. Anyone else get that?</p>
<p>for the 7^1600, my brain remembered some trick my teacher taught me back in…seventh grade (?) about exponents. it had something to do with the ones digits of numbers being the same…basically, 7^4, 7^8, 7^12 and so on would all have the same ones digit.</p>
<p>i tested that out first and i got 1 for my ones digit for 7^4, 7^8, 7^12, 7^16 and 7^20 so i just assumed that 7^1600 would follow suit so i marked 1 for my answer.</p>
<p>i could be wrong though! math is usually my worst section so don’t take my answer as a complete truth.</p>
<p>what do u think i got? I had 9 omits!!! and 2 errors and 43 right</p>
<p>what is the answer to this question?
From what I recall: One pump drains a pool in t hours. Another pump drains the pool in t/2 hours. Together, each working at full capacity, they drain the pool in 12 hours. What is t?</p>
<p>what is a experimental?</p>
<p>****. I thought i had a 800 on this one for sure. F-MY-Life. What’s -2?</p>
<p>what do u think i got? I had 9 omits!!! and 2 errors and 43 right !</p>
<p>I didn’t get the pump one,
Please explain it; how is the answer 36?.. I shudda just omitted it, rather than guess blindly -_-</p>