Make a guess and check table to figure out if you do not know it off the top of your head.
The answer is 7 and 7
True
<span>Cos(A+B)=CosACosB-SinASinB
therefore Cos(A+A)= CosACosA - SinASinA
= Cos^2A - Sin^2A</span>
If I am reading this right, the final total after adding the 55% markup rate should be $159.65.
24/3=8
Therefore one third of the can is 8 liters.
24-8=16.
Peter has to fill 16 liters.
