Recent content by firstwave

Probability Question - Need help please! There are three boxes with 2 cupcakes in each one of them: First box: 2 chocolate cupcakes Second box: 1 chocolate, 1 vanilla Third box: 2 vanilla cupcakes A person randomly opens up a box and selects one cupcake. It is a chocolate cupcake. She then...

I look at death from another more intuitive angle. Though I don't believe in any religion, I still believe that when one dies, his spirit does not. Death, according to me, only occurs to the organic species. We, human beings, are composed of organic parts as well as spiritual parts. I think...

Ohhhh right. I forgot that if two sets of four do not balance, you can eliminate the third set. Thanks for your insightful solutions :)

Hmm, I don't think that works. If I compare two groups of 4 keys, there are 2 possible outcomes. Either one side is different or both groups weigh the same. If the outcome is the former, I still need to use the scale once more to determine which one of the three groups contains the different...

My grade 12 math teacher gave us a question that I found to be very interesting. You have 12 identical keys. 11 of the 12 keys have the same mass. Only one of them has a different mass. You have a scale, but it is not digital and it does not tell you the actual weight. It only shows you which...

Hey, here is a question I couldn't figure out. I think it's actually really easy, but the wording confuses me. A recent survey showed that the population, P, of Victoria is growing at an annual rate of 1.1%. Let P0 represent the population on January 1, 2001 and let t represent the time, in...

would it be possible to draw it in the forum?? I still don't get it. I knew how to do this a while ago and it was pretty easy. I did draw a diagram but it didn't really help for some reason. Maybe I read the question wrong, but either way I still don't understand. :cry: AH HA! Thanks Fred...

Physics Kinematic Problem -- need help Well here I am studying for the final and this question pops up and I have no idea how to do it. I know the answer however, but it does not really help me. If you walk 6.0 km in a straight line in a direction north of east and you end up 2.0 km east and...

ok thanks all

thx guys :D I think 360 is 2 sig figs 360.0 = 4 sig figs

I understand that if your doing multiplication, round to the least amount of sig figs. Addition: Round to the least amount of decimal places. What about a question with both multiplication, division and addition, subtraction? Such as (5.2 x 10^4 + 4.2 x 10^-2)/ 3.6 x 10^2 How would...

yes thanks so much I think I understand all 5 now THX!

Hey I am left with this question and I have no clue how to do it y = -3 f(x+2) - 7 (Function help!) 1. f(x) = x 2. f(x) = x^2 3. f(x) = |x| 4. f(x) = 1/x 5. f(x) = (square root of 2) how do i write that out? Basically I am suppose to substitute the 5 things into the equation and the...