You know if the grade boundaries aren't low, I think I managed a C/B which is bad! :/ Reading your answers made me depressed and now I gotta work harder on the other too.
for the evaluate 0.2^-2 was it okay to leave the answer as a fraction? i.e 1/0.04?
Not sure as it said simplify, and you haven't fully simplified it. I found it easier to look at it as (1/5)^-2, then you have 5^2 and can see easier that it is actually 25.
Not sure as it said simplify, and you haven't fully simplified it. I found it easier to look at it as (1/5)^-2, then you have 5^2 and can see easier that it is actually 25.