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rewona [7]
3 years ago
12

Find an ordered pair (x,y) that is a solution to the equation. 3x-y=8

Mathematics
1 answer:
allochka39001 [22]3 years ago
7 0

Answer:

(2,-2)

Step-by-step explanation:

3x-y =3(2) -(-2)= 6 +2 = 8

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PLEASE HELP
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Nine times a number divided by 2 equals 54.
bazaltina [42]

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4 0
3 years ago
One survey showed that among 785 randomly selected subjects who completed four years of college, 18.3% smoke and a 98% confidenc
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Answer

a. True

Step-by-step explanation:

Based on this survey we estimate that about 18.3\% of the college students smokes. And a 98\% confidence interval is [15.1\% ; 21.6\%].  So we know that our estimative for the smoking rate is in the confidence interval with 98\% certainty. We also know the estimative for the smoking rate in the general population is 27\%. So we can write the two possible hypothesis:

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Since this condition holds we reject the null hypothesis. So with 98\% certainty we say that the smoking rate for the general population is different than the smoking rate for the college students.

6 0
3 years ago
Which expression is equivalent to 5.4+3.4w-1.8w +5.8 A) 7(1.6+w) B) 1.6(7+w) C) 1.6(7w) D) 1.6(0.25+w)
Bad White [126]
Do 5.4 plus 5.8 then do 3.4w minus 1.8w and whatever you get for each is your key to the expression. So if you were to solve the answers like A you would do 7(1.6+w) and see what you would get. Obviously A isn't the answer. Sorry, this is hard to explain. But the answer is C 
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3 years ago
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