Step-by-step explanation:
2x + 100 = 90
x = -5
Angle A = 45 - 5 = 40.
we can divide the composite shape into on quadrilateral and triangle as shown in the diagram. since the line that joins the two shape is parallel to the base AB, the angle DEC is 85°.The angle CEA is 180°- angle DEC = 180-85=95. Angle BCE is sum of angle CEA, ABC and EAB subtracted from360°= 360°-(95+95+85)=85°. Angle DCE is 120°- ECB=35°. So, angle CDE = 180°-(35°+85°)= 60°. For reference see the diagram.
It will call for A: One Centiliter. It's the same terms for stuff like millimeters and centimeters, 1 cm = 10 mm, 1 cl = 10 ml
In 5xy it would be 5x×1y and then 2y if they variable doesn't have a number infront of it it is assumed to be a One.
![\sqrt{28}](https://tex.z-dn.net/?f=%20%5Csqrt%7B28%7D%20)
It is in between
![\sqrt{25}](https://tex.z-dn.net/?f=%20%5Csqrt%7B25%7D%20)
And
![\sqrt{36}](https://tex.z-dn.net/?f=%20%5Csqrt%7B36%7D%20)
There for it is in between 5 and 6
Additionally, it is closer to root 25, meaning that it is closer to 5
Rounded to the nearest hundredth is
5.29