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photoshop1234 [79]
3 years ago
8

Pls help, it’s worth 15 points!

Mathematics
2 answers:
babunello [35]3 years ago
7 0
It’s option 1: 30 + 22i
Molodets [167]3 years ago
5 0

Answer:

(1) <em>30 + 22i </em>

Step-by-step explanation:

x = 3 + 7i ⇒ 2x = 6 + 14i

y = - 6 - 2i ⇒ 4y = - 24 - 8i

2x - 8y = ( 6 + 14i ) - ( - 24 - 8i ) = 6 + 14i + 24 + 8i = (6 + 24) + (14i + 8i )

2x - 8y = <em>30 + 22i</em>

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Answer:

As   2.551 < 3.84 therefore we reject H0.

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Step-by-step explanation:

The answer is attached.

There are three judges so v1 = 3-1= 2  and v2 = (4*2)= 8

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