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Lapatulllka [165]
2 years ago
14

Determine if the following side lengths can create a triangle: 5, 7, 13 A. Yes B. No

Mathematics
2 answers:
Paul [167]2 years ago
8 0

Answer:

No

Step-by-step explanation:

In order for three sides to make a triangle, if any two sides are added together, their sum should be greater than the third side:

=><u> 5 + 7 = 12 < 13 (DOES NOT check off the rule)</u>

=> 7 + 13 = 20 > 5 (Checks off the rule)

=> 5 + 13 = 18 > 7 (Checks off the rule)

As shown, even though 2 of the statements check off the rule the third one does not, this means that the sides don't make a triangle.

Hope this helps!

ASHA 777 [7]2 years ago
7 0

Answer:

No

Step-by-step explanation:

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Answer:

C. H 0 : μ = 7 vs. Ha : μ ≠ 7

Since the calculated value of t = -9.462 falls in the critical region  t ≤-2.048

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Step-by-step explanation:

The null hypothesis the usually the test to be performed. Here we want to check whether the water is neutral or not. Neutral water must have a pH of 7 . This can be stated as the null hypothesis. And the claim is treated as the alternate hypothesis that water in not neutral or not having pH= 7

In symbols it will be written as

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Let the significance level be 0.05

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The critical value is  t ≥ 2.048 and t ≤ - 2.048 for 0.05 two tailed test with 28 df.

The test statistic to use is t- test

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And the sample standard deviation is =s= 0.63

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Step-by-step explanation:

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Step-by-step explanation:

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