BlueBook Test 2 Sec 6 Quesion 16 Help Plz.

Test Preparation SAT Preparation
1

<p>Man, these hard type questions are impossible
I can't get any of them. Can anyone tell me why? I've been studying like crazy.</p>

<ol>
<li><p>Let the function h be defined by h(x) = 14 + (x^2/4).
If h(2m) = 9m, what is one possible value of m?</p></li>
<li><p><a href="http://i32.tinypic.com/15meaew.jpg%5B/url%5D"&gt;http://i32.tinypic.com/15meaew.jpg&lt;/a&gt;&lt;/p&gt;&lt;/li>
<li><p><a href="http://i26.tinypic.com/mbqt8p.jpg%5B/url%5D"&gt;http://i26.tinypic.com/mbqt8p.jpg&lt;/a&gt;&lt;/p&gt;&lt;/li>
</ol>

2

<p>anyone know how to do these?</p>

3

<p>For the chiming problem, you just need to realize that clocks A and B will chime eight times at 8 and one time at 7:30 and 8:30. Clock C one time at the hour and at the 1/2 hour marks.</p>

<p>Type A = Chime 8 times on the 8th hour + once every half hour.
Type A = (eight chimes at 8 oclock) + 2 chimes (7:30, 8:30)</p>

<p>Ten clocks will chimes 8 + 2 = 100 chimes. </p>

<p>Type B = Chime 8 times on the 8th hour</p>

<p>5 clocks times 8 = 40 chimes</p>

<p>Type C = Chimes 1 time on the 8th hour + once every half hour. </p>

<p>3 clocks time 3 = 9</p>

<p>Add them up for a a total of 149.</p>

4

<p><a href=“http://talk.collegeconfidential.com/sat-act-tests-test-preparation/85545-blue-book-question.html[/url]”>http://talk.collegeconfidential.com/sat-act-tests-test-preparation/85545-blue-book-question.html&lt;/a&gt;&lt;/p&gt;

<p>9m = 14 + (2m)^2/(4)</p>

<p>9m = 14 + (4m^2)/4</p>

<p>9m = 14 + m^2 …the 4’s cancel out</p>

<p>m^2 - 9m + 14 = 0</p>

<p>factor</p>

<p>m = 2 or 7</p>

5

<p><a href=“http://talk.collegeconfidential.com/sat-preparation/85346-sat-math-question.html[/url]”>http://talk.collegeconfidential.com/sat-preparation/85346-sat-math-question.html&lt;/a&gt;&lt;/p&gt;

6

<p>Maybe it’s because I’m not understanding the question.</p>

<p>How do you know it chimes 8 times when there are 10 clocks?</p>

<p>I thought all of Type A Chimes at both (Chimes n Times on the nth hour) and at (Chimes Once on the Half hour).</p>

<p>Is it that some of the 10 Clocks of Type A will (Chimes n Times on the nth hour) and some of them will (Chime once on the half hour)?</p>

<p>Thanks for helping!</p>

7

<p>Look at the titles of the columns in the table. </p>

<p>Chimes X times on the Xth hour … that means that at 7 PM it would chime 7 times, at 8PM … eight times, etc. In this problem, only 8 o clock matters. </p>

<p>Clocks A will chime 8 times at 8 and one time at 7:30 and another time at 8:30. That is ten times. There are ten clocks of type A.</p>

8

<p>oh wow. I never noticed that.</p>

<p>Thanks!</p>

9

<p>Just check it out there instead of posting all your questions</p>

10

<p>also if you need step by step instruction go to khan academy… he works through the math questions</p>