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Yanka [14]
3 years ago
7

Pls help!! i don’t get it at all

Mathematics
2 answers:
NikAS [45]3 years ago
7 0

Answer:

9

Step-by-step explanation:

We can answer this problem by using the Pythagorean theorem, which goes as follows:

a² + b² = c²

a & b are the legs (sides adjacent by 90 degrees) and c is the hypotenuse ("longer" side or side across from the 90° angle)

<u>We plug stuff in like this, and then solve:</u>

Formula:  a² + b² = c²

Plug in: <em> </em>10² + b² = \sqrt{181}²

Square root and square cancel each other out: <em> </em>10² + b² = 181

Square the 10: 100 + b² = 181

Subtract 100 from both sides: b² = 81

Square root of both sides: b = \sqrt{81}

Square root of 81: b = 9

<em>Leaving us with our answer. I hope this helps, have a nice day :)</em>

tigry1 [53]3 years ago
5 0
Basically put it in a calculator
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Answer:

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Answer:

Correct options is (A).

Step-by-step explanation:

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The hypothesis can be defined as:

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<em>Hₐ</em>: There is a difference between the average GPA of seniors and the average GPA of sophomores, i.e. <em>μ</em>₁ - <em>μ</em>₂ ≠ 0.

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