<p>sorry but is the consensus 156ish for the surface area question or is it 182?</p>
<p>^ Thats what I though also, but apparently its A.</p>
<p>@sporty04 156ish.</p>
<p>What was the surface area question? Surface area of what?</p>
<p>Consensus is 156ish I think.</p>
<p>is everyone positive about the sin(theta)cos(theta) roman numeral question being II and III as the answer?</p>
<p>I need to retake in January. I ran out of time. I don’t know how many I left blank, around 6 though. What’s a -7 to -8 good for on this test?</p>
<p>According to ACTtesters previous curves its seems like 42 to maybe even 41 might be an 800 since 43 is 800 for average/medium tests and 44 is 800 for easy tests.</p>
<p>@ViggyRam: if you got none wrong, skipping 6 would be an 800. -8 would typically be 780-790.</p>
<p>Thanks. All I can do is hope. I would be absolutely thrilled if I don’t have to retake.</p>
<p>
Hmm, I don’t think 41 will be an 800; that’s pushing it a bit. And the curve with a 42 Raw Score being an 800 was from November 1982, so I’m not sure how accurate it would still be.</p>
<p>@tmaster3g 0</p>
<p>@ACTTester, subject tests didnt exist in the 80’s</p>
<p>Shaldin, they did, they were called Achievement tests (I used a 1989 book to study Math 2) lol</p>
<p>I thought the test was straightforward. There were 6 i skipped over and ran out of time to do i probably missed 3-4. Kind of disappointing, but then again I’ve never been a strong test taker.</p>
<p>From a guy that studied only from the Princeton book and a high school graduate, it was fairly tough for me. A’s in Precalculus and Calculus, yet I couldn’t understand so much of the test, shame on me.</p>
<p>I wouldn’t say the test was extremely hard though.</p>
<p>For the sin x and cos x one. You guys are all wrong. It is None, A.</p>
<p>why u ask?</p>
<p>because the pythagorean rule states that sin^2 x + cos^2 x = 1</p>
<p>I. sin^2 x + cos^2 x = 2…WRONG!
II. sin^2 x + 2cos^2 x = 1…WRONG! because this equation is also sin^2 x + cos^2 x + cos^2 x = 1.
III. 2sin^2 x + cos^2 x = 2…also wrong. look above.</p>
<p>^@scrimmyboy</p>
<p>The question basically asked which of the following could be true for some value x:</p>
<p>I. sin^2 x + cos^2 x =2 (obviously wrong for all x because of pythagorean rule)</p>
<p>II. sin^2 x + 2cos^2 x =2 (could be true when sin is 0 and cos is 1, like at 0 degrees)</p>
<p>III. 2sin^2 x + cos^2 x = 2 (true when sin is 1 and cos is 0, like at 90 degrees)</p>
<p>Therefore, the answer was II and III</p>
<p>i dont believe it was asking for some value of x</p>
<p>
Uh, yes they did. Like ZapadniyRus said, they were called Achievement Tests back then, which is clearly printed on my test.</p>
<p>No, I might not have been clear.</p>
<p>I meant if you plug in 90 degrees for x in choice III, it would satisfy the equation. (because sin 90 is 1 and cos 90 is 0)</p>
<p>If you plug in 0 degrees for choice II, it would satisfy the equation (because sin 0 is 0 and cos 0 is 1)</p>
<p>The value if x is consistent in each of my examples, but the sin of x is different from the cos x. I’m pretty sure this problem asked which of these equations could be satisfied by some value x. The examples I gave prove that choices 2 and 3 could be true in some cases. I could be wrong, but this seems to be the consensus on CC.</p>