The answer is definitely -4 1/8
We will see that the solution in the given interval is: x = 0.349 radians.
<h3>How to solve equations with the variable in the argument of a cosine?</h3>
We want to solve:
cos(3*x) = 1/2
Here we must use the inverse cosine function, Acos(x). Remember that:
cos(Acos(x)) = Acos(cos(x)) = x.
If we apply that in both sides, we get:
Acos( cos(3x) ) = Acos(1/2)
3*x = Acos(1/2)
x = Acos(1/2)/3 = 0.349
So x is equal to 0.349 radians, which belongs to the given interval.
If you want to learn more about trigonometry, you can read:
brainly.com/question/8120556
Answer: 47 ream papers were used.
Step-by-step explanation:
23,500 divided by 5000 = 47
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<em>Hope it helps!</em>
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By making 80=2x+20 by corresponding angles in parallel lines you find x=30 because 2(30)+20=80
You can make 4 skateboards because 1/4 is equal to 0.25 so therefore 32.25 is how big each section would be so in order to get the number of skate boards you divide 129 by 32.25 and that gets you the answer of 4
