Nov. '09 - SAT Math Level 2 - Page 3

nigcrunch · 11-07-2009, 11:05 AM

Yeah, I got infinite too.

widly05 · 11-07-2009, 11:07 AM

What was the answer to the trapezoid problem. It was question #19, with one side equal to 8, where you had to find the height.

nikeboy3004 · 11-07-2009, 11:10 AM

weird, for that one i got only 2, because I was if x=/2 then some equation is not equal to eight, this is false because minus 2 worked, and then for II it was the converse, if a statement is false its converse it right, then III didnt work either for me. And as much as i remember the wording for the triangle one was how many noncongruent triangles can be formed, but since a<bsina there was no triangle possible, doesnt matter if its congruent or incongruent, no triangles could be formed at all.

nikeboy3004 · 11-07-2009, 11:11 AM

it was like 8*tan 42 if im not wrong, in that one they gave the base length for no reason

DMOC · 11-07-2009, 11:12 AM

DMOC'S OFFICIAL MATH II SAT REPORT!!!!!

1. I got "no triangles" for the question concerning how many triangles could be made.
2. I got "Above 99th percentile" for the standard deviation question.
3. I skipped the "what's the center of this ellipse" question. Only one I skipped.

4. For the question that had "which is the greatest value: cos 67, sin 67, etc. I chose the last choice." Sec67.
5. For this question:

I. If x^2+4 = 8 , then x=2
II. If x^2+4=/=8, then x=/=2
III. If x=/=2 then x^2+4=/=8

It's II only.

My only question concerning the test is ... what the heck is the answer to the question that asked "if the average of this set is x^3, what is x?" Seems easy at first but I must be missing something here.

widly05 · 11-07-2009, 11:14 AM

DMOC, I think the answer was 3.14 or something like that

nigcrunch · 11-07-2009, 11:14 AM

It said no triangles could be formed that are congruent. But there is an infinite amount of non-congruent triangles. But i'm not sure because if it does not exist, it might not be able to have a non congruent or a congruent. lol, whatever. I don't know, I think that's a very ambiguous question. And I tested the situations for the I and III problem or whatever, and I got it to work out. But I don't know. Those multiple answer questions are tricky sometimes.

DMOC · 11-07-2009, 11:14 AM

That wasn't one of the answer choices.

It was

A: -21.blablabla
B: 1.20
C: 1.23
D: 1.71
E: 1.74

Sci-Fry · 11-07-2009, 11:15 AM

I think I got 1.20 for the x^3 average question.

I think it was something like (7.5 + x)/(5 or some other number) = x^3. Rearranged it and graphed it and got x=1.2ish.

For the cos67, sin67 one I think I put 1/cos67 but I can't remember too well...

nigcrunch · 11-07-2009, 11:16 AM

It was pretty easy, you add (x+ all the values)/5=x^3, and solve for x using a graph, i got like 1.20. and the cos(67) one was the last one, it was E. sec(67).