Rewrite <span>2cos x + 1 = 0 as:
2 cos x = -1, and then cos x = -1/2
x must be in Quadrant II or Quadrant III, since the adj. side is negative.
Note that the angle 120 has adj. side -1 and hyp 2. So 120 degrees is one solution.
Now what about a possible 2nd solution, to be found in Quadrant III? That would be -120 degrees, which has the same terminal line as does 240 degrees.
No soap.
So, the solution is 120 degrees.</span>
Answer:
Cam expect to earn if he sells all the corn produced on 1.5 acres is $8725.
Step-by-step explanation:
Given :
,
and 
To find : How much can Cam expect to earn if he sells all the corn produced on 1.5 acres?
Solution :

Substitute a=1.5,



Now, taking function 
Substitute C=9750,



Now, taking function 
Substitute a=1.5,



Therefore, Cam expect to earn if he sells all the corn produced on 1.5 acres is $8725.
I think it might be 11x-8
I'm really sorry if that's wrong
Answer:
the second one +1.5 m/s
Step-by-step explanation:
to find the velocity you need to find the slope of the two points then just put it into the time (s) and position (m) terms which equals +1.5 m/s