You can use the trigonometric identity

.

The requirement that

eliminates -1/6 from being another solution.
Answer:
B
Step-by-step explanation:
Slope is the same(x) therefore they are parallel
32850 pounds are used in a year.
Answer:
It would take 5 days
Step-by-step explanation:
1990/400 is 4.975 round that it is 5 so 5 days
Well start at 0,1,2,3, etc. and plug in the numbers until you get you answer of 2!