Answer:
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Step-by-step explanation:
<h2>Answer: </h2><h2>C, 5/8x + 2.5 = 3/8 x +1.5 + 1/4x</h2><h2>~</h2><h3>There are no values of 'X' that make the equation true, therefore the equation has no solution. </h3><h2>~</h2>
Hope you have a good day, Loves!
Also if I'm right can you let me know, please?
<u>Also Also if I am right can I please have Brainliest??</u>
<em>You don't need to, I'm just glad I could help. ^^</em>
<em><u>(If I did help-)</u></em>
Answer:
865
Step-by-step explanation:
We have that in 95% confidence level the value of z has a value of 1.96. This can be confirmed in the attached image of the normal distribution.
Now we have the following formula:
n = [z / E] ^ 2 * (p * q)
where n is the sample size, which is what we want to calculate, "E" is the error that is 2% or 0.02. "p" is the probability they give us, 5 out of 50, is the same as 1 out of 10, that is 0.1. "q" is the complement of p, that is, 1 - 0.1 = 0.9, that is, the value of q is 0.9.
Replacing these values we are left with:
n = [1.96 / 0.02] ^ 2 * [(0.1) * (0.9)]
n = 864.36
865 by rounding to the largest number.