Re: Physics Tutoring For HSC 2013 -- Starting Term 4, 2012 [FILLING FAST!]
Looking at the results of your students, there must be something in those cupcakes :P
Are they sold separately?
But isn't that different to proving logb(x)=y then b^y=x?
Logs were invented by John Napier as assistance in multiplication, and were essentially simple calculators. How can you prove a concept created by man, not discovered by man?
(Unless I am dead wrong, if so im sorry)
If the results were accurate, that means that you need to add:
-The number of people with the flu and the test indicated so +
-The number of people without the flu and the test indicated so.
So 72+256=328. Then to find as % put it over 347, which is equal to 94.52449568%, rounded to 95%. So (C)
Perpendicular bisector means the line perpendicular to the line passing through those points, but also goes through the middle of those two points. So find the midpoint of the two points [ (2,?) ] and then use the point gradient formula. (are you sure the gradient is 1/2?)