I think the answer to 14 is J
Answer:
Hence The composition
of the given function is
.
Step-by-step explanation:
Given:


We need to find
.
Solution:
Now we can say that;
= 

Now Applying distributive property we get;

Now Solving the exponent function we get;

Hence The composition
of the given function is
.
Angles in triangle add to 180 degrees
20x=180
x=9
Angle ABC is the top one
8x9=72
Answer:
The 95% confidence interval for the true mean speed of thunderstorms is [10.712, 13.688].
Step-by-step explanation:
Given information:
Sample size = 10
Sample mean = 12.2 mph
Standard deviation = 2.4
Confidence interval = 95%
At confidence interval 95% then z-score is 1.96.
The 95% confidence interval for the true mean speed of thunderstorms is

Where,
is sample mean, z* is z score at 95% confidence interval, s is standard deviation of sample and n is sample size.



![CI=[12.2-1.488, 12.2+1.488]](https://tex.z-dn.net/?f=CI%3D%5B12.2-1.488%2C%2012.2%2B1.488%5D)
![CI=[10.712, 13.688]](https://tex.z-dn.net/?f=CI%3D%5B10.712%2C%2013.688%5D)
Therefore the 95% confidence interval for the true mean speed of thunderstorms is [10.712, 13.688].