<p>@mbomb: I think the answer choices were .24, .48, .52, .67, .76</p>
<p>@Hiking7610 the answer was .52 then. because you have to take the probability of getting both then the probability or getting none from 1. So 1-((.6x.4)+(1-.6)(1-.4)). the answer should be .52.</p>
<p>What do you guys think 34 correct with the rest omitted would be?</p>
<p>Let’s say you knew abs(x)=abs(y), what must be true between x and y?</p>
<p>I also saw this in a review book. Would it just be x^2=y^2</p>
<p>That’s what I got. ^</p>
<p>^ I chose that too :P</p>
<p>@mbomb:
You needed the probability of at least one arriving, so you only subtract the probability of none from 1. So you do 1-(1-.6)(1-.4) and you get .76</p>
<p>It’s .76.</p>
<p>10char</p>
<p>what did you guys get for the one about which were periodic functions and the one about the polar coordinate?</p>
<p>^ Could you elaborate on the periodic functions one? I can’t quite remember the question.</p>
<p>Periodic functions would be like tan(x). If you add/subtract by a constant it still maintains its period.</p>
<p>yeah for the period functions it was I and II only because the first one was f(x) +1 which moves it up and the second was f(x+1) which moves it left 1. these two still maintain their period</p>
<p>@kerning yes it is that answer because squaring any answer will give you a positive and you know that the positives of x and y equal each other so squaring the number negative or positive will get you the same value</p>
<p>Periodic function was everything but the third one. because f(x+1) is still the same function but moved one to the left, and f(x)+1 is the same function but moved one up. f(x)+x (Number III) was wrong because this would cause it to not be periodic.</p>
<p>And the Standard Deviation, I got .1. The Standard deviation shouldn’t change when you add 2 to everything. </p>
<p>And for the percentile question I got in-between. </p>
<p>And for the 6 consecutive multiples of three, the answer was 5. I checked my figuring out the actual multiples. It was from 33 to 48. The number was 4 203 239 040. a+b+c=2+0+3=5.</p>
<p>If you had a pyramid with a square base with side lengths 8, and the slant height (is that what it’s callex?) is 15, what would be the actual height of the pyramid?</p>
<p>The third one was f(x)+x, which isn’t periodic.
Anyone remember the parallelogram question? How about the question about the area of the square?</p>
<p>For the parallelogram question, I got 3 but I’m not too sure about that.</p>
<p>the area of the square is four times bigger. the parallelogram question is 3 possibilities. the actual height of the pyramind i forgot but you can find the altitude by making 2 right triangles and then pythagorean thereom.</p>
<p>@kerning: the height would be square root of (15^2-4^2)=square root of 209</p>
<p>I got 3 for the parallelogram one</p>