In this equation, x = 7.
In order to solve this you are going to need to use logarithmic functions. By taking a logarithm you can eliminate exponents.

First we're going to take the logarithm of both sides, which allows us to put the exponents in front of the terms.
(x + 2)Log5 = 9Log5
Now that we've done this, we can divide both sides by Log5 and eliminate that term.
x + 2 = 9
From here, we simply need to subtract in order to solve.
x = 7
trick question, its 7...
Step-by-step explanation:
Answer:
The null hypothesis will not be rejected.
Step-by-step explanation:
The hypothesis for the test is:
<em>H</em>₀: There is no difference between the two population means, i.e. <em>d</em> = 0.
<em>Hₐ</em>: There is a significant difference between the two population means, i.e. <em>d</em> ≠ 0.
Consider the Excel output attached.
The mean of the differences is,
.
The standard deviation of the differences is,
.
Compute the test statistic as follows:

The degrees of freedom is, n - 1 = 7.
Compute the <em>p</em>-value as follows:

The decision rule is:
The null hypothesis will be rejected if the p-value of the test is less than the significance level.
<em>p</em>-value = 0.112 > α = 0.02.
The null hypothesis will not be rejected.
Answer:
The sampling technique used is the systematic sampling.
Step-by-step explanation:
Systematic sampling as the name implies is the application of a system so select samples, like having a people in a line, and a system is used to select the sample, like counting one to three and picking every third person in the line. This kind of sampling is bias because everyone is not giving equal opportunity of selection.
Answer:
I would have to say C.14
Step-by-step explanation:
Because if you are running the same exact emperiment with the same exact materials everytime then you should get the same outcome.
Hope this helps! : D