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Serjik [45]
2 years ago
9

the absolute value of a number is the distance from 0 to the number on a number line. use absolute value notation to indicate tw

o number that are 3 units away from 0​
Mathematics
1 answer:
ASHA 777 [7]2 years ago
7 0

Answer: It is 3 and negative -3

Step-by-step explanation:3 units away from zero forwards and back are both 3 but one is negative

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What is the answer to this?
Salsk061 [2.6K]

Answer:

30 square feet

Step-by-step explanation:

area= length times width  

5 0
3 years ago
A sample of 26 offshore oil workers took part in a simulated escape exercise, and their escape time (unit: second) were observed
Anuta_ua [19.1K]

Answer:

t=\frac{370.69-360}{\frac{24.36}{\sqrt{26}}}=2.238  

The degrees of freedom are given by:

df = n-1= 26-1=25

And the p value would be:

p_v =P(t_{25}>2.238)=0.0172  

If we use a 5% of significance level we have enough evidence to reject the null hypothesis and we can conclude that the true mean is significantly higher than 360 second or 6 minutes. We need to be careful since if we use a significance level of 1% the result change

Step-by-step explanation:

Information given

\bar X=370.69 represent the sample mean

s=24.36 represent the sample standard deviation

n=26 sample size  

\mu_o =6*60 =360 s represent the value to verify

z would represent the statistic

p_v represent the p value

Hypothesis to test

We want to check if the true mean is at most 360 seconds, the system of hypothesis would be:  

Null hypothesis:\mu \leq 360  

Alternative hypothesis:\mu > 360  

The statistic for this case would be given by:

t=\frac{\bar X-\mu_o}{\frac{s}{\sqrt{n}}} (1)  

We can replace in formula (1) the info given like this:  

t=\frac{370.69-360}{\frac{24.36}{\sqrt{26}}}=2.238  

The degrees of freedom are given by:

df = n-1= 26-1=25

And the p value would be:

p_v =P(t_{25}>2.238)=0.0172  

If we use a 5% of significance level we have enough evidence to reject the null hypothesis and we can conclude that the true mean is significantly higher than 360 second or 6 minutes. We need to be careful since if we use a significance level of 1% the result change

4 0
3 years ago
Help please? Im so lost...
posledela

Answer:

d. 89 degrees

cuz they're alternate interior angles

hope that helps uhh!! :)

4 0
3 years ago
HELP PLZ I'M CONFUSED
SVEN [57.7K]
<span>4 + 3 + 7 ? 7 + 0 +7 

</span>4 + 3 + 7 = 14
7 + 0 +7  = 14
so

4 + 3 + 7  =  7 + 0 +7 
answer
<span>D. =</span>
6 0
2 years ago
Read 2 more answers
Find the mean and range.<br><br> 20 14 29 39 33 25 19 35
egoroff_w [7]
Count:8Sum:214Mean:26.75Median:27Mode:20, 14, 29, 39, 33, 25, 19, 35
4 0
3 years ago
Read 2 more answers
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