Answer:
Part I: cot(15 degrees) = cot(45 - 30)
Part II: Evaluation is below
Step-by-step explanation:
<em>Everything is done in degrees</em>
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Two angles that differ by 15 degrees that is easy to evaluate is 30 degrees and 45 degrees. The cot(15 degrees) = cot(45 - 30) = 1/tan(45-30) = (1+tan45tan30)/(tan30 - tan45) = (1+ sqrt(3))/(sqrt(3) - 1)
We rationalize this by multiplying 1+ sqrt(3) in the top and bottom, getting:
(4 + 2sqrt(3))/2 = 2 + sqrt(3)
I hope this helps! :)
Answer:
There were total 4 samples collected and each sample had a sample size of n = 100.
Step-by-step explanation:
We are given the following information in the question:
Collection of samples:
Hence, there were total 4 samples collected and each sample had a sample size of n = 100.
The answer is 15.525. All you have to do is divide 279.45 by 18 which gives you 15.525.
First you would need to Simplify <span>{3}^{2}<span>3<span>2</span></span></span> to <span>99
Next you would need to : </span>Use Negative Power Rule =9÷31
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then you would need to use a ÷ b/c = a * c/b and get 9*3
And you will lastly get 27</span>
