March 2013 sat

Test Preparation SAT Preparation
1

<p>guys post up questions and answers you guys got especially in reading and writing
so far for we got </p>

<p>Math answers
radical 2
4x radical 3
venn diagram-A
multiples of 5, odd numbers, prime numers-5
If q, r, s, and t are different prime integers rt + st is divisible by w? only 2
if f(x) is f(x-1)+4 what is f(2)? -5
1991
x^-1/2
sudoku-x+y=7
perpendicular to line l y=4
cost of over $1/pound 3
W + x = 10 and w + y = 30 it was D 50
difference between 7th and 8th term-D 20
3x < z
one that was positive -x
8x14 carpet
Grid in-15.6, 9.5, 3200, 155, 4/3, 9, 70</p>

<p>for writing i personally got 3 no errors otherwise everyone please add reading and writing answers</p>

2

<p>Could you please explain how f(2)= -5?</p>

3

<p>f(3) was said to be equal to -1</p>

<p>f(x) = f(x-1) + 4
f(3) = f(3-1) + 4
-1 = f(2) + 4
f(2) = -5</p>

<p>Does anyone remember what they put for the circle problem with center C or something and it asked how many lines can it have to make it symmetric or something of that sort? I put one.</p>

4

<p>f(x)=f(x-1) + 4 and f(3) is -1, what is f(2)?</p>

<p>f(3)= f(2) +4
substitute in -1 for f(3)
-1=f(2) +4
f(2)=-5</p>

5

<p>symmetry was E more than 4 since you can always have symmetry if you draw any line through the center of the circle</p>

6

<p>I put more than four for that one. Can’t any line make the circle symmetric as long as it goes through the center?</p>

7

<p>What question had an answer of x^-1/2?</p>

8

<p>the (4x^4)^1/2 all divided by a or something along those line</p>

9

<p>Ah I see. You didn’t say f(3)=-1</p>

10

<p>What did you guys get for the math question where it said something like “For every +1 in x, y is multiplied by 3?” I had no clue how to do it and I guessed y=6(3^x) or something like that…</p>

11

<p>the 2 short passages about happiness confused me :/</p>

12

<p>same do you remember the questions?</p>

13

<p>@satacer2400 what was the grid in question for the answer 15.6?</p>

14

<p>Do you guys remember the question of the written in math question that had an answer of 155?</p>

15

<p>can you explain the radical 2 question and answer?</p>

16

<p>@soccergrl1387: yes the question was find the max perimeter for a triangle similar to one with sides (6,10,15) and it must have a side of 30</p>

<p>@ajtsong:
the question said the radius=1/diameter, what is the diameter?
r=.5d (definition of radius)
r=1/d (given)
.5d=1/d
d^2=2
d=rad2</p>

17

<p>Does anybody remember the answer to the -r problem? I think it was like one of the last questions in a math section. It was a variable problem with like a and b or something</p>

18

<p>Oh wow i really feel happy because i guessed on the last ones of the math section and based on what Im seeing, I think i got them right. Did anybody get a math experimental section? The one that either included the circle one, which i answered 9/16, or the one about the 6th and 7th term being 5 more, which i answered 5… something like that.</p>

19

<p>I believe it was B for me… (r(a-b))/(b-a) I tripled checked so I know i got it right but Im not sure if I wrote it down right here</p>

20

<p>so the coffee bean a dollar an ounce one was 3?
i got 4…</p>