Answer:

Step-by-step explanation:

Juan is in the middle
<u>Explanation:</u>
Given:
Five students in total
_ _ _ _ _
Juan is not the shortest. So, Juan can be in 2nd, 3rd, 4th or 5th position.
_ J J J J
Tad is the tallest and not standing next to Juan, So,
_ J J _ T
Caroline is next to Tad. So,
_ J J C T
Juan is not standing next to Pamela. So,
P _ J C T
Marco is taller than Pamela. So,
P M J C T
The height is arranged in increasing order from Pamela to Tad.
Thus, from the series we can see that Juan is in the middle.
<span>the answer is
sin x +2sin x cos x=0
</span>sin x(1 +2 cos x) =0, so sin x =0 or (1 +2 cos x)=0, implies <span>cos x =-1/2</span><span>
the solutions are x= arc sin 0 = 2Pi +2kpi or x=arccos (-1/2)=2Pi/3 +2kpi</span>
I’m sorry to use this but, you can’t have someone answer it if they don’t know the options for the answers :/
Answer:
108°
Step-by-step explanation:
The sum of angles on a straight line is 180°
Therefore:
x + 72° = 180°
x = 180° - 72°
x = 108°
Therefore, the value of x is 108°