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Oxana [17]
3 years ago
7

What is the square root of 1,563?

Mathematics
1 answer:
murzikaleks [220]3 years ago
4 0
39.5 but if you round than it would be 40
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A factory dumps an average of 2.43 tons of pollutants into a river every week. if the standard deviation is 0.88 tons, what is t
vovikov84 [41]
25.8%  
First, determine how many standard deviations from the norm that 3 tons are. So:
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So 3 tons would be 0.647727273 deviations from the norm. Now using a standard normal table, lookup the value 0.65 (the table I'm using has z-values to only 2 decimal places, so I rounded the z-value I got from 0.647727273 to 0.65). The value I got is 0.24215. Now this value is the probability of getting a value between the mean and the z-score. What I want is the probability of getting that z-score and anything higher. So subtract the value from 0.5, so 0.5 - 0.24215 = 0.25785 = 25.785%  
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5 0
2 years ago
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4 0
3 years ago
Tan(x)=2
nydimaria [60]
<span>Tan(x)=2
Or for x=45 tan(x)=1
then for tan(x)=2 ; x must be superior to 45 
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8 0
3 years ago
In order to qualify for the tournament, basketball teams have to win at least 70% of their games. This season, the Bears lost 6
stealth61 [152]
The bears won 9 games.
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Hope this helped
3 0
3 years ago
The temperature at 12:00 p.m. was 8°C. At 7:00 p.m., the temperature was -6°C. What was the change in temperature (in degrees Ce
Alik [6]

Answer: 14-degree decrease

Step-by-step explanation:

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5 0
3 years ago
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