January 2010 Math thread

Test Preparation SAT Preparation
541

<p>someone explain the bacteria 1250 one!!!</p>

542

<p>what kind of score am i looking at with 2 MC wrong and 1 grid-in missed? 730?</p>

543

<p>730 sounds about right</p>

544

<p>silverturtle- in that list one of the answer is 75 degrees for the 3:4:5 triangle, did the question ask for the largest angle, or did it ask for the value of x if the three angles were in the proportion 3:4:5?</p>

545

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<p>I remember writing and bubbling in the answer 2.5, but I don’t remember for what.</p>

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<p>It asked for z, the largest angle.</p>

546

<p>Jamez, I remember putting 2.5 for that one too.</p>

547

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<p>The original problem: Total # of Bacteria = Initial Bacteria * 2 ^ (t/3) and the total was 10,000 and the # of days was 6. The answer was 1250.</p>

548

<p>hmm was there another question where the answer was 3250?</p>

549

<p>Alright I’m pretty sure I did that problem correctly.</p>

550

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last year I missed the same number and got away with a 750. however I think we’re all predicting the curve to be a little harder this time around [since math was apparently easier than usual] so anywhere bewteen 720-740.</p>

551

<p>2.5 was the one possible x value when y was less than 1/2 but still positive</p>

552

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<p>yes… that was the question that asked for the bonus if the person sold 65000 dollars… the corresponding rate was 5%… and it was an FRQ</p>

553

<p>Alright cool. I remember putting 3250 for SOMETHING.</p>

554

<p>what would 3MC wrong be?</p>

<p>thanks</p>

555

<p>around a 740-750</p>

<p>easiest math section ever sent out by collegeboard
ever.</p>

<p>(2,5) was the biggest joke ever</p>

556

<p>The possible values of x for which y was less than 1/2 were between 2 and 3.</p>

557

<p>did anyone get the diagram question? with factors of 15, 20, and 30?</p>

558

<p>questions I don’t see on the list:
(x+2)^2=49, x can equal -9
X is all multiples of 2, Y is all multiples of 3; which cannot be in the union of X and Y (not really sure about this one)</p>

559

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I’m pretty sure that was experimental</p>

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<p>You’re not talking to me right? Cuz im guessing 3MC wrong on the easiest math section ever is probably like 710?</p>

560

<p>Are you sure the minimum value of x/y required different integers?</p>

<p>I’m pretty sure for x i had 1+1+1
and y 19+19+19</p>

<p>ugghhhh I was hoping for PERFECTION</p>