September 2010 ACT Math Discussion

<p>lol oh right i thought it was an answer i had clearly missed. ha</p>

<p>Oh hey wasnt their one that had to do with the Law of Sines?</p>

<p>@actfan, no there wasn’t.</p>

<p>ok. well i either used it when i didn’t have to and got the right answer. Or, I used it improperly and what i got just happened to be an answer choice. Oh well. It’s all becoming a blur</p>

<p>Hmm… that one where the answer was 46, did it give you an original angle of 44 to work with?</p>

<p>^Yes, and it gave you 2 90 degree/perpendicular angles.</p>

<p>Yes 10char</p>

<p>what was the one with the (2, 230 degrees)</p>

<p>?</p>

<p>was it third or second quadrant?</p>

<p>^ it was third quadrant</p>

<p>Third. 10char</p>

<p>Dang it, I knew pentagon was too obvious. The question was worded so that it made me wonder whether they were asking what I thought they were asking. Can anyone clear up what the question actually meant?</p>

<p>No one else has confirmed the question with how many times bigger does the volume get when you double the diameter of a sphere. I’m 99% sure the answer was 8 times.</p>

<p>^ I agree: the question was badly worded. I did put “circle”, though.</p>

<p>Which shape can have the most lines drawn through 5 points? Circle, rectangle, line, triangle, or some other shape I forgot?</p>

<p>^ i wasn’t sure of that question, but i put circle, and it seems like i’m right? yay. and yeahhh i’m positive it’s 8 times, i plugged in numbers to check=)</p>

<p>@SoccerRyan Yes sir 8 times. I plugged in numbers and got 8.0 times bigger</p>

<p>^Yes you are correct.</p>

<p>Could a -1 math possibly be a 36? or am I stuck with a 35? :(</p>

<p>^No it would definitely be a 35.</p>

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<p>The question said “Start with a geometric figure and 5 distinct points. Then draw lines connecting as many pairs of points as you can. In which of the following figures can you connect the most pairs?” In a circle, you can connect adjacent points while in a pentagon you cannot, so the answer is a circle as you can connect 5 additional pairs.</p>