The equation at the right has been incorrectly solved, the answer to this is b = -7
Answer:
The length side of the triangle is ![\frac{10\sqrt{3}}{3}\ cm](https://tex.z-dn.net/?f=%5Cfrac%7B10%5Csqrt%7B3%7D%7D%7B3%7D%5C%20cm)
Step-by-step explanation:
we know that
The equilateral triangle has three equal sides and three equal internal angles of measure of 60 degrees each.
Let
b------> the length side of the equilateral triangle
Applying Pythagoras theorem
![b^{2}=(b/2)^{2}+5^{2}\\\\ b^{2}-(b/2)^{2}=25\\\\ (3/4)b^{2}=25\\ \\b^{2} =25*4/3\\ \\b=\frac{10}{\sqrt{3}}\ cm\\ \\b=\frac{10\sqrt{3}}{3}\ cm](https://tex.z-dn.net/?f=b%5E%7B2%7D%3D%28b%2F2%29%5E%7B2%7D%2B5%5E%7B2%7D%5C%5C%5C%5C%20b%5E%7B2%7D-%28b%2F2%29%5E%7B2%7D%3D25%5C%5C%5C%5C%20%283%2F4%29b%5E%7B2%7D%3D25%5C%5C%20%5C%5Cb%5E%7B2%7D%20%3D25%2A4%2F3%5C%5C%20%5C%5Cb%3D%5Cfrac%7B10%7D%7B%5Csqrt%7B3%7D%7D%5C%20cm%5C%5C%20%5C%5Cb%3D%5Cfrac%7B10%5Csqrt%7B3%7D%7D%7B3%7D%5C%20cm)
To start, determine how much a non-college graduate would earn over a 40 year period by multiplying their yearly salary by 40, 30,000*40=120,000. Next, increase it by 30%. Do this by taking 30% of 120k to find out how much more money you would make in comparison to a non-college grad, 120,000*.3=36,000. This means a college grad would make $36,000 more than a non-college grad.
Answer:
x=139
Step-by-step explanation:
angles on a straight line add up to 180 degrees