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3 years ago

Julie has the three segments shown in the graph. Can she make a triangle with these segments.

Mathematics

2 answers:

FinnZ [79.3K]3 years ago

7 0

Answer:

ppl the answers A

Step-by-step explanation:

According to the triangle inequality if a, b, and c are lengths of the legs of a triangle then a + b > c. If you measure the segments, their measurements are 5, 5, and

and 5 + 5 >

. Therefore, Yes, the segments do meet the triangle inequality.

bagirrra123 [75]3 years ago

5 0

Answer:

Step-by-step explanation:

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We know the following info:

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$n_2 = 200$ sample size group 2

We want to find a confidence interval for the difference of means and the correct formula to do this is:

$(\bar X_1 -\bar X_2) \pm t_{\alpha/2} \sqrt{\frac{s^2_1}{n_1} +\frac{s^2_2}{n_2}}$

Now we just need to find the critical value. The confidence level is 0.95 then the significance is $1-0.95 =0.05$ and $\alpha/2 =0.025$ . The degrees of freedom are given by: