<p>was I finding the x-value or the y-value?</p>
<p>what did you get for sina=.3 or whatever</p>
<p>OK there was a question about a painter who wants to paint the ceiling and that walls or something, and the dimensions were long 18x15x8 or something like that. It was easy, but I am actually ■■■■■■■■, so I couldn’t figure it out.</p>
<p>I think they were asking for sin(theta)=.3
And you had to find the cos(theta).</p>
<p>I’m not sure if they specified the quadrants on that one.
I got .95, but maybe it -.95?</p>
<p>u just had to add the area of (18<em>15) + 2(15</em>8) + 2(18*8) because it was only the roof and walls</p>
<p>What was the function for the equation that had the (3sinx+2) in the denominator?</p>
<p>Wasn’t it just asking where x would be undefined?</p>
<p>they were asking for sin(theta)=.3
You had to use the law of cosines to find cos(c)=something like .7888, then find the sin of that and it was -.953 I believe</p>
<p>Was the sin(theta)=.3 problem on the top right?</p>
<p>Was the answer E?</p>
<p>^agreed </p>
<p>Did anyone get the population problem?</p>
<p>yea it was just like the initial population(1.0092)^10</p>
<p>AtypicalAsian</p>
<p>I’m not sure if this is the right way to do it, but couldn’t you do a geometric series?
A1= initial population in 2004(?) (2 hundred something)?
A11=population in 2014
r=.0092 (since it was .92% increase each year)</p>
<p>and then you’d find the Sum of term 11 with the geometric series formula</p>
<p>Does anyone remember more detail on the sin(theta)=.3 question? I remember that part but not anything else about the question :(</p>
<p>@kerning, I got 3.87 the one that was asking for when x is undefined</p>
<p>Dang. I skipped 4 in all.</p>
<p>Hbout the question that was like at 2002, the us population was blah blah blah. at 2014, what was the US population in millions if percent increase is .94%?</p>
<p>MuayThaiLeeSin</p>
<p>I just wrote about that above, I’m not sure what the given numbers were though. I’m positive about .0092 though</p>
<p>@MuayThaiLeeSin I put 321 million for the final answer, each year the population increased by 1.0092 * old population</p>
<p>I remember the population question. I’m pretty sure the initial population was 3,000,000 in year 2004, while the population increased by .92% each year. It asked for the population in 2014. To solve the question, you just needed to do 3,000,000 x 1.0092^10 (since 10 years are between 2004 and 2014), which ends up being about 3.29 million.</p>
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<p>For [pi/2, pi], if sinA = .3, what is the value of cosA. cos(2.8369) = -.9539.</p>
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