<u>Given</u>:
Given that the bases of the trapezoid are 21 and 27.
The midsegment of the trapezoid is 5x - 1.
We need to determine the value of x.
<u>Value of x:</u>
The value of x can be determined using the trapezoid midsegment theorem.
Applying the theorem, we have;
![Midsegment = \frac{b_1+b_2}{2}](https://tex.z-dn.net/?f=Midsegment%20%3D%20%5Cfrac%7Bb_1%2Bb_2%7D%7B2%7D)
where b₁ and b₂ are the bases of the trapezoid.
Substituting Midsegment = 5x - 1, b₁ = 21 and b₂ = 27, we get;
![5x-1=\frac{21+27}{2}](https://tex.z-dn.net/?f=5x-1%3D%5Cfrac%7B21%2B27%7D%7B2%7D)
Multiplying both sides of the equation by 2, we have;
![2(5x-1)=(21+27)](https://tex.z-dn.net/?f=2%285x-1%29%3D%2821%2B27%29)
Simplifying, we have;
![10x-2=48](https://tex.z-dn.net/?f=10x-2%3D48)
Adding both sides of the equation by 2, we get;
![10x=50](https://tex.z-dn.net/?f=10x%3D50)
Dividing both sides of the equation by 10, we have;
![x=5](https://tex.z-dn.net/?f=x%3D5)
Thus, the value of x is 5.
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Y=8x
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