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:
1.2
Step-by-step explanation:
If you multiply the length by the width to find area, then you can divide the area by the width to find the length.
÷ 
= 1.2
Answer:
5 children
Step-by-step explanation:
7 adults = $70
5 children = $25
total= 12 people
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therefore 5 children went
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