Answer:
100°
Step-by-step explanation:
Anders Celsius used centigrade temperature scale along with mercury thermometers with a fixed boiling point of water at zero, he also used a fixed freezing point of water at the mark of 100-degree. This new scale was described in the year 1742 to Swedish Academy of Sciences.
Solution:

![x+1=0\\x=-1\\\\2x-4=0\\x=2\\\\\frac{5x^{2}+8x+2}{2x}=0\\x=\frac{-4+\sqrt[]{6}}{5}\\x=\frac{-4-\sqrt[]{6}}{5}](https://tex.z-dn.net/?f=x%2B1%3D0%5C%5Cx%3D-1%5C%5C%5C%5C2x-4%3D0%5C%5Cx%3D2%5C%5C%5C%5C%5Cfrac%7B5x%5E%7B2%7D%2B8x%2B2%7D%7B2x%7D%3D0%5C%5Cx%3D%5Cfrac%7B-4%2B%5Csqrt%5B%5D%7B6%7D%7D%7B5%7D%5C%5Cx%3D%5Cfrac%7B-4-%5Csqrt%5B%5D%7B6%7D%7D%7B5%7D)
Answer:
![x=-1\\x=2\\x=\frac{-4+\sqrt[]{6}}{5}\\x=\frac{-4-\sqrt[]{6}}{5}](https://tex.z-dn.net/?f=x%3D-1%5C%5Cx%3D2%5C%5Cx%3D%5Cfrac%7B-4%2B%5Csqrt%5B%5D%7B6%7D%7D%7B5%7D%5C%5Cx%3D%5Cfrac%7B-4-%5Csqrt%5B%5D%7B6%7D%7D%7B5%7D)
<em>Hope this was helpful.</em>
Answer: okay what do you need help with
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I hope this helps.