whatarethoose
Member
- Joined
- Nov 10, 2015
- Messages
- 33
- Gender
- Male
- HSC
- N/A
30c u had to use the cosine
But, if their was 185 silver coins and 20 gold coins that would mean that their was a 20/205 chance of selecting the gold coin which makes the probability of selecting a gold coin 4/41, where the probability of selecting a gold from the previous answer was 4/37. So, their must have been 185 coins in total because 20/185 = 4/37.correct the SILVER coins were 185. You had to add the 20 gold with 185 to get 205 (total coins
That is correct.I cant recall the equations but I did substitute the values back into the equation and got s = 10 x = 64.
Fingers crossed. Although, their was one question involving future value that I am not completely sure I put the right values in.Anyone hoping for a state ranking ?
Good worki got s = 10 x = 64
Yes that is what I get.Can someone clarify the energy question. Was it 505 x 5 x 0.35 + 990?
But, if their was 185 silver coins and 20 gold coins that would mean that their was a 20/205 chance of selecting the gold coin which makes the probability of selecting a gold coin 4/41, where the probability of selecting a gold from the previous answer was 4/37. So, their must have been 185 coins in total because 20/185 = 4/37.
The volume is 58.9 for the marshmallow one.the marshmalow i got 190 something for the volume
and the coin one was 185 right?
Concerning the question where they asked you to verify that the correlation coefficient to three decimal places: was this in the parameters of the syllabus? My teacher taught us that it wasn't in the scope of syllabus for us to work it out - they said that questions would always have to give you the correlation coefficient. Regardless, I learnt how to do it, and so I got the answer, but I'm wondering if this happened to anyone else?
Yes. Because the equation is M = A(1.1)^x, which is just this M = A(1+10%)^x. So, the growth rate is 10%.For M = A(1.1)^ , the growth rate is 10% right?
29) D)iWhat question number was this?
This is the answer for part I. From memory the answer from part II was around 190, I think that is what they are referring to.The volume is 58.9 for the marshmallow one.
V=π*r^2*h
=π*2.5^2*3
=58.9cm^3
Oh right I couldn't be bothered to solve the second part, 190cm^3 sounded a tad large to me when I looked at part 1!This is the answer for part I. From memory the answer from part II was around 190, I think that is what they are referring to.
I think your teacher advised you guys poorly unfortunately although it does sound like something a lot of teachers wouldn't have taught their students.29) D)i