Answer:
0.6 or 3/5
Step-by-step explanation:
If cos(t) = 4/5, then, taking the arccos of both sides, t ≈ 36.86989765. Taking the sin of that gives you 0.6, or 3/5 in fraction form.
9514 1404 393
Answer:
2/9 square yard
Step-by-step explanation:
You can see that the 1-yard square is divided into 18 rectangle. Of those, 4 are colored, so the fraction of the area that is colored is 4/18 square yard.
That fraction can be reduced by dividing 2 from each of those even numbers:
4/18 square yard = 2/9 square yard
The shaded area is 2/9 square yard.
I believe it would be 13.6 ethanol because .85 times 16 equals 13.6