The answer is C
explanation:
In all triangles the interior angles add up to 180 degrees. the top angle of this triangle is 90 degrees and 180-90=90, so the bottom 2 angles add up to 90. They are symmetrical, so you can just divide 90 by 2 who is 45 and you have to it answer.
Answer:
p=\frac{9}{7}
Step-by-step explanation:
![p - 12p + -2p - -19p + -13p = 9\\p(1-12+(-2)-(-19)+(-13)) = 9\\p(-11-2+19-13)=9\\p(7)=9\\p=\frac{9}{7}](https://tex.z-dn.net/?f=p%20-%2012p%20%2B%20-2p%20-%20-19p%20%2B%20-13p%20%3D%209%5C%5Cp%281-12%2B%28-2%29-%28-19%29%2B%28-13%29%29%20%3D%209%5C%5Cp%28-11-2%2B19-13%29%3D9%5C%5Cp%287%29%3D9%5C%5Cp%3D%5Cfrac%7B9%7D%7B7%7D)
Let's check the answer:
Answer:
1. 72 ![\frac{5}{11}](https://tex.z-dn.net/?f=%5Cfrac%7B5%7D%7B11%7D)
3. 79 ![\frac{5}{6}](https://tex.z-dn.net/?f=%5Cfrac%7B5%7D%7B6%7D)
Step-by-step explanation:
The mean is found by dividing the sum of the inputs by the total number of inputs.