<p>Pg. 361 BB (ver.2) #8
Pg. 367 BB (ver.2) #3</p>
<p>thanks!!</p>
<p>Pg. 369 BB (ver.2) #8
Pg. 370-371 BB (ver.2) #10-12</p>
<p>much appreciated for those people who choose to help me… sorry but i couldn’t find the explanations of these problems online or in the book. thanks</p>
<p>i dont have a book with me, would you mind typing it up and include a drawing if it’s given?</p>
<ol>
<li><p>(√x^2-t^2)=2t-x
^(whole thing is square rooted)
If x and t are positive numbers that satisfy the equations above, what is the value of x/t?</p></li>
<li><p>this one has a lot of diagrams…</p></li>
<li><p>this one also has a lot of diagrams… XD</p></li>
<li><p>same with this one… :(</p></li>
<li><p>In a certain school, there are k classes with n students in each class. If a total of p pencils are distributed equally among these students, how many pencils are there for each student? </p></li>
<li><p>has a diagram…</p></li>
</ol>
<ol>
<li>square both sides</li>
</ol>
<p>x^2-t^2=4t^2-4tx+x^2
(x^2 on both sides can cancel each other…move 4t^2 to the left side)</p>
<p>-5t^2=-4tx (cancel -t )</p>
<p>5t=4x</p>
<p>x/t=5/4</p>
<ol>
<li> #pencils/#students=p/kn</li>
</ol>
<p>Page 367, #3: (C)
–> explanation: f(x)=f(-x) –> f(1)=f(-1); f(2)=f(-2). Only diagram C fits since in this diagram f(1)=f(-1)=f(2)=f(-2)=0</p>
<p>Page 369, #8: (B)
–> explanation: f(x+5)=f(5) –> this function has a portion (the part you so see in the figure from x=0 to x=5) repeated. Then from x=0 to x=5 the figure intersected the x-axis 9 times (maybe this is a bit hard to understand, you can draw it out to see those points)</p>
<p>Page 370, #10: (E)
–> explanation: k = f(3) = 4 –> g(k) = g(f(3)) = g(4) = 5</p>
<p>The final one is not so difficult so you should try 
g’luck</p>
<p>i have one too!! Question 15, BB version 2. Test number 4. Section 6. Regarding the triangle with the diagram. Explanation needed because frankly, i don’t get the BB one.</p>