How do u solve 11p + 16 = 2p + 7 ?? please give a step by step *EXTRA POINTS*
2 answers:
Answer:
The answer is
<h2>p = - 1</h2>Step-by-step explanation:
11p + 16 = 2p + 7
First of all subtract 2p from both sides by the equation
That's
11p - 2p + 16 = 2p - 2p + 7
9p + 16 = 7
Using the subtraction property subtract 16 from both sides of the equation
We have
9p + 16 - 16 = 7 - 16
9p = - 9
<u>Divide both sides by 9</u>
We have the final answer as
<h3>p = - 1</h3>Hope this helps you
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Answer:
The margin of error for the 95% confidence interval for the mean score of all such subjects is of 8.45.
Step-by-step explanation:
We have the standard deviation for the sample, which means that the t-distribution is used to solve this question.
The first step to solve this problem is finding how many degrees of freedom, we have. This is the sample size subtracted by 1. So
df = 27 - 1 = 26
95% confidence interval
Now, we have to find a value of T, which is found looking at the t table, with 26 degrees of freedom(y-axis) and a confidence level of . So we have T = 2.0518
The margin of error is:
In which s is the standard deviation of the sample and n is the size of the sample.
In this question:
. So
The margin of error for the 95% confidence interval for the mean score of all such subjects is of 8.45.