Answer:
![\left[\begin{array}{ccc}1&2&3\\4&5&6\\7&8&9\end{array}\right] \int\limits^a_b {x} \, dx \geq \sqrt{x} \left \{ {{y=2} \atop {x=2}} \right. \frac{x}{y} \alpha \alpha \alpha =\beta](https://tex.z-dn.net/?f=%5Cleft%5B%5Cbegin%7Barray%7D%7Bccc%7D1%262%263%5C%5C4%265%266%5C%5C7%268%269%5Cend%7Barray%7D%5Cright%5D%20%5Cint%5Climits%5Ea_b%20%7Bx%7D%20%5C%2C%20dx%20%5Cgeq%20%5Csqrt%7Bx%7D%20%5Cleft%20%5C%7B%20%7B%7By%3D2%7D%20%5Catop%20%7Bx%3D2%7D%7D%20%5Cright.%20%5Cfrac%7Bx%7D%7By%7D%20%5Calpha%20%5Calpha%20%5Calpha%20%3D%5Cbeta)
Step-by-step explanation:
area 4 ft
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Z = 99°
~ It is equivalent to the angle across from it.
X = 4
~ 99+7x+53=180 (add similar terms)
152+7x=180 (subtract 152 from both sides)
7x=28 (divide by 7)
x=4
