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3 years ago

15

?simplified the expression

1 answer:

larisa [96]3 years ago

5 0

The first two negatives cancel out and you're left with positive 4. Now go inside the square root and do the exponent. -4*-4 = 16. Then do the -4*3*1 = -12. Do 16-12 = 4. now the square root of 4 = 2. at the dominator is 2*3 = 6. right now they problem should look like 4+- 2/ 6. from there you split the problem in two. so you have 4+2/6 & 4-2/6 then you solve both problems.
6/6 2/6
1 1/3
1 & 1/3 are your answers. I hope this helped!

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3 years ago

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3 years ago

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katen-ka-za [31]

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Step-by-step explanation:

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Now, find the margin of error M as such

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How large should a sample be if the margin of error is 1 minute for a 93% confidence interval

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Rounding up

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3 years ago