<p>It was parallel.</p>
<p>Why is lake county .27?</p>
<p>I forgot what the questioned asked but it was basically, (possible people living in Lake county)/(total population) or something</p>
<p>Ok then the answer was .32</p>
<p>The question was like 470000/1481000</p>
<p>@Des, that looks vaguely right, but your answer is for sure what I got.</p>
<p>was that top left num. divided by bottom left num?</p>
<p>Can anyone confirm that the one with a graph with a zero at 2 that was migrated up 2, had a new x intercept at 4?</p>
<p>Top left num over top right num. It was a reading problem.</p>
<p>it was f(x+2), not f(x) + 2. Left shift 2.</p>
<p>mistervert is right; desafinado is right</p>
<p>@mistervert - so it was 0?
Dang.</p>
<p>Why is the bacteria growth question 26 hrs?</p>
<p>5 omit 3~5 wrong, is that atleast a 750+ i am certainly not aiming for 800, and does anyone know the cut off for a 750. Thanx, :)</p>
<p>Bacteria Growth Problem:</p>
<p>Doubles every 1.17 hours.</p>
<p>P(2)^(t/d) = N</p>
<p>P = principle, which is 1
N = end, which is 5,000,000</p>
<p>t = population at time t
d = doubles every d units, which is 1.17</p>
<p>Full equation:</p>
<p>1 * 2^(t/1.17) = 5,000,000</p>
<p>log5000000/log2 = 22.25
22.25 * 1.17 = 26.03</p>
<p>i disagree with the answer for the standard deviation question. When adding +5, the SD doesn’t change; only multiplication affects SD, right? so the SD does not increase by 5</p>
<p>i did this as well ^
SD didn’t change because the “amount of spread” is the same if you add 5 to all scores.</p>
<p>i use “amount of spread” loosely</p>
<p>Yeah, the question was phrased as “which is incorrect” so stddev changing is right.</p>
<p>ARe you sure the lake county is .32? Because it was given that the person lives in A lake county. Not specifically the lake county in Indiana.</p>
<p>There was also an interval question in the beginning and the answer was something like -2<x<0 or something</p>
<p>im pretty sure it was
"If the answer (or whatever they said 2k+1 equaled) is a prime number, then k is an integer. I am 100% sure they started w/ IF and it being a prime number</p>
<p>it was #of people in lake county, indiana divided by #of people in lake county, US</p>
<p>it was ln(sinx)=0 (0<x<pi), what would lnx =
so wouldnt it be ln(pi/2)???</p>
<p>sorry if i misunderstood your post</p>