November SAT Math Discussion!

Test Preparation
81

<p>I had test B. Here are my consolidated answers. I was working on only three hours of sleep and kinda sick, so I can not guarantee they are all correct. Anyway, enjoy!!! </p>

<p>Math Answers:</p>

<p>First Section:

  1. Twelve
  2. 80
  3. 24
  4. 80%
  5. Net E (This was the cube folding one)
  6. 50
  7. (2,2)
  8. b^(2y+8)
  9. x^2 > y
  10. 25
  11. 49pi
  12. 101
  13. 15b
  14. 15sqrt3
  15. {2,4,9}
  16. 1/3
  17. III Only
  18. 15
  19. 0
  20. 1</p>

<p>Second Section (With grid-in):</p>

<ol>
<li>-19</li>
<li>26</li>
<li>1</li>
<li>Line segment DE</li>
<li>6 and 2/3</li>
<li>Angles X and Z</li>
<li>7</li>
<li>Positive and Decreasing
GRID-IN</li>
<li>140</li>
<li>4.8 or 24/5</li>
<li>4 or 5 or 6</li>
<li>75</li>
<li>4</li>
<li>1980</li>
<li>144</li>
<li>1/2</li>
<li>58</li>
<li>5/21</li>
</ol>

<p>Third Section:</p>

<ol>
<li>Line Segment PS </li>
<li>18</li>
<li>21</li>
<li>(x/y)-3</li>
<li>4 inches</li>
<li>1/2</li>
<li>30</li>
<li>1.2</li>
<li>t is even</li>
<li>120</li>
<li>5</li>
<li>pt > 0</li>
<li>20</li>
<li>15</li>
<li>(2sqrt2)r</li>
<li>200</li>
</ol>

82

<p>F*** my life i missed three, how much do you think that will be 710-740</p>

83

<p>How is the quad WXYZ is X and Z, i put W & Z</p>

84

<p>I don’t remember the wording exactly, but did it say lengths XY and XZ are the same and lengths XW and WZ are the same? If so, then it must be X and Z which are congruent (Just draw a convex quadrilateral meeting the criteria or a triangle where the angle measure of W would be 180).</p>

85

<p>clandarkfire, r u sure that’s the correct slope?</p>

86

<p>It is, warlands.</p>

87

<p>I didnt get the answer in the other thread, so I guess ill post it here. Can someone tell me the question with the oval where apparently the answer is k =1 ?</p>

88

<p>I sent you a pm. Does it make sense now?</p>

89

<p>yeah…didnt catch the 1/4</p>

90

<p>Any consensus on the a =2, b=3 question? Pretty badly worded question.</p>

<p>I put III only (a cannot equal 2) because of the mathematical logic theorems. It was the contrapositive, which has the same truth as the original. So based on the contrapositive, it is III only. However, based on common sense, it isn’t. </p>

<p>Anyone considering emailing collegeboard?</p>

91

<p>The consensus for the most part is III. Some people say “none” tho.</p>

92

<p>yea i put III only… but only because of the contrapositive. If we are wrong, I will be so angry because I changed it from none, the answer based on common sense.</p>

93

<p>If you remind me what the statement of III is I can explain why it is III only.</p>

<p>The equation was a%b = a+b - ab I believe.</p>

94

<p>It was the one where if a =2 , b =3</p>

<p>If b= 6</p>

<p>III . a cannot equal 2</p>

95

<p>the explanation is the contrapositive… I already know. Just that it kind of goes against common sense. But I’m not complaining (I put III only), just going to be ****ed if I get marked wrong.</p>

96

<p>I meant that I would explain it mathematically, not logically. </p>

<p>It was if b=1, then a%b=1, right?</p>

<p>Given a+b - ab</p>

<p>a+1 - a(1)
a+1 - a
1</p>

97

<p>What was the sock question answer. I put 1/3</p>

98

<p>My argument for III Only:</p>

<p>People are claiming that the problem never stated that y is a function of x (or vice versa) and therefore does not have to pass the vertical line test, which allows x to take on the value of 2 for multiple y-points. However, if the question read as follows: “If x=2, then y=3…” then we are specifically given only one corresponding value of y for x=2 (namely 3). Therefore, x CAN NOT be 2 at any other point, or else it would have had to have been explicitly stated in the given statement.</p>

<p>This may be a little unclear, and is based off my recollection of an “If/Then” statement. Any questions or better wordings of the problem would be welcome.</p>

99

<p>Ok I think I did fine. However, there was that one question asking about the seventh number for an arithmetic mean that I’m beating myself up over. Did that question ask for an integer. It would be so obnoxious to do well on the test but to be tripped up by not reading the question carefully. Especially on math with its obnoxious curve.</p>

100

<p>What was the answer to the problem where it gave an equation and it asked what is 3 (diamond) 5</p>