Yer srry 2. was a silly mistake i can now see it was 10 cents or answer c right? But r u sure about 5 i checked that about 10 times and think i am right. because D) gives 48 which is not 12. What did you get for 5 and why
I can see that 14 is not right and i think it could be a) but how do you work out a question like this. what i did was divided square root of 5 by 100 and squared it. Is that right?
Are you sure 14 is D. I keep getting A. this is how i do it
I figure is the same as this:
=
So then i divided both by 100 converting it into meters:
Then i multiply both sides to get it in square metres:
and that is why i get A. Are you sure i am wrong. Why? maybe earboth knows