Mathematics: √13 • 3 √13 could someone tell me what the answer to this is? or at least how to do it? i’ve been stuck looking up stuff for about 45 minutes and i’m so confused.

√13 • 3 √13 could someone tell me what the answer

Ответ:

bapefer498

03.06.2020

If a squareroot is multiplied by the same (like your example) it turns the number in squareroot as natural number.

squareroot 13 • 3 squareroot 13 = 13•3= 39

Hope it helps!
#MissionExam001

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Ответ:

aubford9442

03.07.2022

Mathematics

98% Confidence interval: (0.5483,0.6891)

Step-by-step explanation:

We are given the following in the question:

Sample size, n = 257

Number of adults total body length was 28 feet or longer, x = 159

$\hat{p} = \dfrac{x}{n} = \dfrac{159}{257} = 0.6187$

98% Confidence interval:

$\hat{p}\pm z_{stat}\sqrt{\dfrac{\hat{p}(1-\hat{p})}{n}}$

$z_{critical}\text{ at}~\alpha_{0.02} = 2.326$

Putting the values, we get:

$0.6187\pm 2.326(\sqrt{\dfrac{0.6187(1-0.6187)}{257}})\\\\ = 0.6187\pm 0.0704\\\\=(0.5483,0.6891)$

is the required 98% confidence interval.

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√13 • 3 √13 could someone tell me what the answer to this is? or at least how to do it? i’ve been stuck looking up stuff for about 45 minutes and i’m so confused.

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