November 2011 Math 2

Test Preparation SAT Subject Test Preparation
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<p>For Math I, I had about 10 minutes left to go back and check my answers.
Math II, I ran out of time. :confused: I omitted one and missed 4-6? I’m going to retake it in December.</p>

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<p>I got at least 5 wrong and 5 omit, man I Hope I at least get over 700.</p>

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<p>So a(98) was i(-2+i) which is -2i-1</p>

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<p>Sorry a(99) i meant the one I was talking about sin=1/1.61 was sin^2x+cos^2x/sinx=1.61</p>

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<p>Is anyone going to cancel his/her score before retaking again?</p>

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<p>What were the answer choices (A, B etc) for the two we are deciding between on 50</p>

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<p>**jman010295: **
thanks for the clarification (I’ve added “your” question as #23)
UPDATED LIST

  1. Period of y = abs(tan 2x) – > pi/2
  2. Triangle with sides sq rt(37), 3,4 – > sin theta = .866
  3. Question#50 (complex numbers) – >99th term=-2-i or -2i-1 (depending on whether 10th was -1+2i or -2+i)
  4. Area to be painted – >798
  5. Probability sum > 100 – >½
  6. Boxplot – > 50%
  7. Exponential growth/population – >321 million
  8. Exponential regression – >24 weeks
  9. Function with property f(x+3)=f(x)f(3) – > e^x
  10. Value of x for which 2/(3sinx+2) is ) undefined – > 3.87
  11. Smallest Standard deviation – > 8, 10, 10, 10, 10, 12
  12. Number of edges of pentagonal prism – >15
  13. Video rental – >x/(0.6d)
  14. I. x^2=2^x II. >, III. < – >I, II, III
  15. Which equation is different? – > (E) b=(-a)^2
  16. Graph transformation – > -f(-x)
  17. Closest ellipse comes to y=15 – > 12
  18. Ways to find answers to f(x) = g(x) – > I and III only
  19. If sin A = 0.3, and A is in quadrant II, what’s cosA? – > -0.953
  20. Geometric sequence – >2nd term= -6
  21. Prime numbers/counterexample-- > n=15
  22. Similar triangles – >7.1? 4.7?
  23. (sin^2 x+cos^2 x)/sin x=1.61 – > x = 38.4 degrees</p>
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<p>i believe the similar triangles one was 4.7 u do proportions and then law of cosines. lets try to think of all the questions so we can have a full list. Also, I believe that a(10) was
-2+i so i times that would be -2i-1. Here are a couple easy ones:</p>

<p>F(3)-F(2) = 4-(-3) = 7… this was my first question
logx-logy = log(x/y) NOT logx/logy
there was a question with the time when the ball is 20 ft off the ground the equation was -16t^2+40=h(t) i believe the answer was rad5/2 which is 1.12
There also was one where f(x)=lnx and g(x)=2x+1 and u had to find f(g(rad2)) so it came out to be like 1.18 or 1.19
Also when f(g(x)) was x and g(x) was 1/x → f(x) also equals 1/x
Also tanxcotx=1 in the interval of 0<x<pi/2</p>

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<p>Height of the tree was 100tan26 + 6 which is 54.8</p>

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<p>Height of a cone of radius 6 and with a radius of a cross section 4. The height between the base and the cross section is 8. What is the height of the cone?</p>

<p>A: 24
You can draw the figure as a triangle and draw in the cross section. Make a smaller triangle with side lengths 8 and 2 with an unknown hypotenuse by drawing a vertical line from the end of the cross section to the base. The length of the new segment is 2, giving you the side of 2. tan(x)times the radius of the base is the answer</p>

<p>tan(x) = 4, radius of the base = 6</p>

<p>A:24</p>

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<p>@christ that was a test I did last night in the blue book not today’s test… What other questions guys I wanna get a complete list?</p>

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<p>jman010295: do you remember the specific values of the F(3)-F(2) = 4-(-3) = 7. just want to make sure i didnt do anything stupid here</p>

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<p>F(t)=3t^2-8t+1</p>

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<p>what would getting 8 wrong and leaving 8 blank get me?</p>

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<p>chemwarrior - You can use this chart, which is universally shared by Barrons, the CB Official, and Sparknotes: [SparkNotes:</a> SAT Subject Test: Math Level 2: Math IIC Scoring](<a href=“SparkNotes: Today's Most Popular Study Guides”>SparkNotes: Today's Most Popular Study Guides)</p>

<p>jman - Can you recall what the last question was?</p>

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<p>How accurate are the curves for the math subject test compared to the ones in the Blue subject test book? I hope they aren’t exactly set in stone and they adjust them based on people’s scores.</p>

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<p>logx-logy = log(x/y) NOT logx/logy
so what’s the answer ?
I think I put C but i don’t remember the answer. … .</p>

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<p>Also what is the answer for the question involving seniors and juniors (I guess) ?
I used combination, but i am not sure …</p>

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<p>Yes, you have to use combinations and counting principle. I think its like 6 nCr 3 * 8 nCr 4</p>

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<p>the last question was the -2+i question umm can someone make a compiled list or can we try to get a full 50 so that we know our scores haha</p>