Let $latex A=\sqrt{B}+\frac{C}{2}-\frac{sinQ}{4+D^{2}}$.
a) Calculate A when $latex B=7000$, $latex C=80.5$, $latex Q=60^{o}$, and $latex D=0.15$. Write down your full calculator display.
b) Write your answer in a) to 2 decimal places.
c) Write your answer in a) to 3 significant figures.
d) Write your answer in a) in the form $latex a \times 10^{k}$, where $latex 1\leq a< 10$.