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ella [17]
3 years ago
10

Please help I'm so confused pls​

Mathematics
1 answer:
riadik2000 [5.3K]3 years ago
4 0
So ur given the equation 1.44x=4.32
So you have to find x and you do this with algebra
X=4.32/1.44
X=3
So Emily bought 3 notebooks
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Given f (x) = -3x - 1, solve for x when f (x) = -4
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You want to obtain a sample to estimate a population proportion. At this point in time, you have no reasonable estimate for the
Vedmedyk [2.9K]

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\\ n = \left(\frac{\texttt{z-score}}{\texttt{margin of error}} \right )^2\cdot p\cdot (1-p) \\ = \left(\frac{2.58}{0.002} \right )^2\cdot 0.5\cdot (1-0.5)=416025

So, sample size required is 416025.

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3 years ago
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