Let the width = x then we have that length = 2x + 5 and also that:
x + x + 2x + 5 + 2x + 5 = 70
6x + 10 = 70
6x = 60
x = 10
Therefore width = 10ft and length = 25ft
Answer:
f9
Step-by-step explanation:
Answer:
See explanation below
Step-by-step explanation:
It depends on what null hypothesis is under consideration.
One of the most common null hypothesis that are subject of study in a given statistical model is <em>the mean</em> predicted by the model.
In this case, the scientist probably observed that the mean of tusk lengths she obtained in a sample did not match the one predicted with the H-W equation.
So, she decided to perform a statistical study by collecting random samples and measuring the tusk lengths to determine a new possible mean and contrast it against the one predicted by the H-W equation.
<em>Let's call M the mean predicted by the H-W equation, and S the mean obtained by the scientist.
</em>
If M different of S and the p-value is 0.021, that means that <em>there is at most 2.1% of probability that the difference between M and S could be due to a random sampling error.
</em>
It should be kept in mind that the p-value does not represent the probability that the scientist is wrong.
Answer:
1.203125
Step-by-step explanation:
Answer:
5x^2 - 7x - 10.
Step-by-step explanation:
11x^2+2-7x-6x^2-12
Bring like terms together We get:
11x^2 - 6x^2 - 7x + 2 - 12
= 5x^2 - 7x - 10.
