P(RRR) = 100/300 x 99/299 x 98/298 = 1617/44551
.:P(NR) = 1-P(RRR)
=42934/44551
Yeh when you 1-(Ans) you get a decimal which wont go into fraction form. To find the numerator just times the decimal by the denominator
For trials i went to bed around 9:30 just to be able to wake up around 5:30-6 to ensure im ready for the 7:00 exams.
However HSC ill probably go bed around 10:30-11. After then I woke get anything through my head.
I remember doing this one.
i.T4=Ar^3 = 2*(3/4)^3= 0.84375m
ii. Geometric Sequence -->Limiting sum.
iii.I did this a different way to the Success One answers.
Limiting Sum = a/1-r
.: 1.5+2/1-3/4
=3.5/0.25
=14m.