Section II (4 Viewers)

[mystiques4]

sweet. my brother says we're right. good job!!! 25.b. i'm not sure about, but i got one microbe = 2 x 10^-5 .. anyone else have an idea?

Wait it was 2x10^-6 or something.

 

[lukadore]

Thats what i got for microbes

wicked!!! i just got that by punching it into the calculator. but i still wasn't sure. i feel more confident now

 

[BlueCatBulletCD]

yeah ive never had to take a question down that far, im pretty sure the right answer is -2x - 9.

I'm pretty sure you're supposed to assume it = 0. Therefore you add 9 to the other side and divide by -2. I checked on my graphics calculator after and it showed -4.5.

 

[cf123]

if you answer a question correctly but then decide it's wrong (and put a line through it) and answer it incorrectly, do the markers look at your first answer give you any marks for doing it correctly first?

anyone know...? :S

 

[Question?]

also. the last question was in my opinion the hardest. i said juan was correct, because there were 8 differences between the theoretical probability and the first experiment, where as there were only 4 differences between the theoretically probable answer and experiment two... what did everyone else get, and what were your explanations?

that was not bad. i had juan being correct. all you need to do is draw the typical die table and outcomes and work from there

 

[Question?]

I'm pretty sure you're supposed to assume it = 0. Therefore you add 9 to the other side and divide by -2. I checked on my graphics calculator after and it showed -4.5.

no you dont u cant add a zero out of nowhere

 

[sir-study-alot]

im wiith mysties4 with the mircobes i did 2 x 10^-6

 

[Bootawa_Boy]

im wiith mysties4 with the mircobes i did 2 x 10^-6

I got 2 x10 ^-5 by going 50divided by 2.5 x 10^6

 

[mystiques4]

im wiith mysties4 with the mircobes i did 2 x 10^-6

Maybe they mixed up, 50mg = 0.5g right? Ah shit, its 0.05 Also, for Question 25C, they said 1m^3 =1000L, but it's wrong? 1 (meter^3) = 1000 litre

 

[emma211]

I'm pretty sure you're supposed to assume it = 0. Therefore you add 9 to the other side and divide by -2. I checked on my graphics calculator after and it showed -4.5.

nah it didn't ask us to find what 'x' was. we only had to simplify the equation so i'm pretty sure it was -9-2x

 

[matttayl]

I got 2 x10 ^-5 by going 50divided by 2.5 x 10^6

did you give your answer in grams ? my answer was way different?

 

[lukadore]

Maybe they mixed up, 50mg = 0.5g right? Ah shit, its 0.05 Also, for Question 25C, they said 1m^3 =1000L, but it's wrong? 1 (meter^3) = 1000 litre

bugger. i didn't notice you had to convert it into grams. bugger bugger!! i guess 2^-6 is correct.

 

[Deanwoods]

Yeh didn't Mary have a slightly higher chance due to the possibility of winning 2 raffles and not just the 1?

I put it as 200/10,000 and 201/10,000

Right/Wrong

 

[mystiques4]

did you give your answer in grams ? my answer was way different?

Yea, my answer was 0.2 x 10^-7 But i have this feeling I wrote -6.

 

[knel]

holy crap... i feel so much better now, missing that last page, knowing other people did it

here is my story. i finished everything did section 2 first so last 10mins i was just chilling making sure i answered everything, get to 28, im like oh yeah cool turn the page and im like OHHHHH SHITTTTTTTT, with 2mins to go. the chick said pens down and im like nahhh and gunned the top 3mark one in like 15secs, turns out i got it right as for the last 4 marker i was just like umm no?

glad im not the only one that missed that last page, sneaky math tests.

 

[BlueCatBulletCD]

nah it didn't ask us to find what 'x' was. we only had to simplify the equation so i'm pretty sure it was -9-2x

Hmm maybe. Then perhaps both would be right...?

 

[Bootawa_Boy]

holy crap... i feel so much better now, missing that last page, knowing other people did it

here is my story. i finished everything did section 2 first so last 10mins i was just chilling making sure i answered everything, get to 28, im like oh yeah cool turn the page and im like OHHHHH SHITTTTTTTT, with 2mins to go. the chick said pens down and im like nahhh and gunned the top 3mark one in like 15secs, turns out i got it right as for the last 4 marker i was just like umm no?

glad im not the only one that missed that last page, sneaky math tests.

wHAT WAS THE ANSWER TO 28c

 

[Bootawa_Boy]

holy crap... i feel so much better now, missing that last page, knowing other people did it

here is my story. i finished everything did section 2 first so last 10mins i was just chilling making sure i answered everything, get to 28, im like oh yeah cool turn the page and im like OHHHHH SHITTTTTTTT, with 2mins to go. the chick said pens down and im like nahhh and gunned the top 3mark one in like 15secs, turns out i got it right as for the last 4 marker i was just like umm no?

glad im not the only one that missed that last page, sneaky math tests.

What was 28c answer

 

[BlueCatBulletCD]

I got 2 x10 ^-5 by going 50divided by 2.5 x 10^6

It was 50mg and it asked to answer in grams so if you left it as 2x10^-5 you'll be wrong.

 

[Marin3 Muscl3]

you know what i hate, coming on BOD and reading everyones answers. Then seeing i got questions wrong. It just makes me more depressed..