<p>I finally got around to doing my College Board BB's first test. I was so relieved that my score was much better than the dang Barron's score. I know there are alot of problems, but I would appreciate any help! Please don't flame me for getting these wrong haha :D</p>
<p>I need some help with mostly math problems:</p>
<p>pg.397 #5</p>
<p>The average (arithmetic mean) of x and y is 5 and the average of x, y, and z is 8. What is the value of z?</p>
<p>pg. 398 #13</p>
<p>The first term in the sequence of numbers shown above is 3 "[3,5,-5]". Each even numbered term is 2 more than the previous term and each odd numbered term, after the first, is -1 times the previous term. For example, the second term is 3+2, and the third term is (-1) x 5. What is the 55th term of the sequence?</p>
<p>pg.400 #18</p>
<p>(I can't draw the graph out :( )</p>
<p>pg. 407 #1</p>
<p>If x + (2/x) = 5 + (2/5), then x can equal which of the following?</p>
<p>Anyway,
The first term in the sequence of numbers shown above is 3 "[3,5,-5]". Each even numbered term is 2 more than the previous term and each odd numbered term, after the first, is -1 times the previous term. For example, the second term is 3+2, and the third term is (-1) x 5. What is the 55th term of the sequence?</p>
<p>So the sequence is 3, 5, -5, -3, 3, 5 and so on.. repeating after every 4 digits
So the 55th digit = 4 x (13) + 3 digits
so it will be the 3rd digit of the sequence, which is -5.</p>