Using the z-distribution, it is found that she should take a sample of 46 students.
<h3>What is a z-distribution confidence interval?</h3>
The confidence interval is:

The margin of error is:

In which:
is the sample mean.
is the standard deviation for the population.
In this problem, we have a 95% confidence level, hence
, z is the value of Z that has a p-value of
, so the critical value is z = 1.96.
Scores on the math portion of the SAT are believed to be normally distributed and range from 200 to 800, hence, by the Empirical Rule the standard deviation is found as follows:



The sample size is n when M = 29, hence:





n = 45.67.
Rounding up, a sample of 46 students should be taken.
More can be learned about the z-distribution at brainly.com/question/25890103
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Answer:
the formula for the volume of a square pyramid is V=a^2*h/3
so if we just put in the data
12^2*10/3
144*10/3
480
so the answer is B
Hope This Helps!!!
I have no clue. How did you get 40
Answer: 0523 i think this the answer i don't know
Step-by-step explanation:
Answer:
(-3+5)(1)=-3+5
Step-by-step explanation:
The multiplicative identity is 1.
The multiplicative identity property days that, if you multiply a real number by 1, that result is the same real number.
This is demonstrated in option B of the given alternatives, where we have:

The multiplication by did not change b the value.