X=90 degrees you can get the answer by adding up all the angles
Answer:
11.5
The sample standard deviation measures the spread of a data distribution of the sample. It is usually used to estimate the population standard deviation
Answer:
9 degrees
Step-by-step explanation:
The temperatire was -3 and then rose by 12, -3 + 12 = 9
Answer:
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So we have the equation:
![\frac{z+9}{4}=2.1](https://tex.z-dn.net/?f=%20%5Cfrac%7Bz%2B9%7D%7B4%7D%3D2.1%20%20)
Then we need to multiply by 4 on both sides to get rid of the denominator on the left:
![z+9=8.4](https://tex.z-dn.net/?f=%20z%2B9%3D8.4%20)
Then we subtract 9 on both sides to solve for z:
![z=-0.6](https://tex.z-dn.net/?f=%20z%3D-0.6%20)
Therefore the answer is z = -0.6.