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I have the question and the answer, but I can't figure out how to get the answer.



I have the question and the answer, but I can't figure out how to get the answer. ​-example-1
User Thenoseman
by
8.0k points

1 Answer

7 votes

Answer:

See below.

Explanation:


z = (15 - 12)/((2.8)/(√(20)))


z = (3)/((2.8)/(√(4 * 5)))


z = (3)/((2.8)/(2√(5)))


z = 3 * (2√(5))/(2.8)


z = (6 √(5))/(2.8)


z = (13.416)/(2.8)


z = 4.792

User Yeray
by
7.4k points

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