SAT math problems!!!

Test Preparation SAT Preparation
1

<p>Hello whomever is reading. I couldn't solve the following problems on the SAT and was hoping that the people here can.</p>

<ol>
<li>On the number line, the distance between the point whose coordinate is a and the point whose coordinate is b is greater than 100. Which of the following must be true?
• a-b›100
• /a-b/›100
• /a/•/b/ › 100 </li>
<li>In the figure above ( picture:<a href="http://i54.tinypic.com/sm8ysz.jpg%5B/url%5D"&gt;http://i54.tinypic.com/sm8ysz.jpg&lt;/a&gt;), AC=6 and BC=3. Point P(not shown) lies on AB between A and B such that CP perpendicular AB. Which of the following could be the length of CP?
A:2
B:4
C:5
D:7
E:8</li>
</ol>

<p>I would really appreciate it if someone solves it and explains how they solved it, thanks in advance!</p>

2

<p>1.\a-b>100<br>
2.A</p>

3

<p>1.\a-b=distance>100
2.BC=3and BC is the hypotenuse of the right-triangle BCP ,hence CP<BC=3</p>

4

<p>Thanks dude! Great help!</p>

5

<p>Very weird problem: I would type it but it is one of those problems with definition sentences and so long… so i have it’s picture (yay). The link: <a href=“http://oi56.■■■■■■■.com/2lnf50.jpg[/url]”>http://oi56.■■■■■■■.com/2lnf50.jpg&lt;/a&gt;&lt;/p&gt;

6

<p>Is the answer (E)? If so, the explanation is as follows:</p>

<p>(W=White, B=Blue, R=Red)*
The marbles drawn were,
1=R
2=W or B
3=B
4=R
5=W or B</p>

<p>So, the number of blue marbles drawn could have been 1, 2 or 3 depending on how many white marbles were selected.</p>

7

<p>The answer is E. They tell you that #1 and #4 are red and #3 is blue. The other two are either both white or both blue because marble # 5 is the same color as #2 which is not red. So, you can have one or three blue marbles, but not two.</p>

8

<p>But why are you picking the first one? It say it’s RED! Isn’t it 2, 3, 5 that may be blue?</p>

<p>Just got it that the numbers aren’t referring to the marbles it’s how many blue there are…stupid me.</p>

<p>Thank you for the quick replies!!!</p>

9

<p>The question about the length of the perpendicular CP. Is there anyway we could find the answer to this question if it was in grid-in? And in what condition does the perpendicular drawn bisect the base?</p>

10

<p>It could have been a grid-in just the way it was stated! But there would be a range of correct answers: any positive number less than 3. There would be no unique solution though.</p>

<p>For you other question: an altitude is also a segment bisector if the altitude is drawn from the vertex of an isosceles triangle.</p>