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Lelechka [254]
2 years ago
11

Which of the following functions illustrates a phase shift?

Mathematics
1 answer:
Dmitry_Shevchenko [17]2 years ago
5 0

B

Step-by-step explanation:

B is the correct answer If I'm correct.

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in the previous problem , ken predicted a drop in temperature . Explain why a drop in temperature would lead to adding a negativ
Rufina [12.5K]

Answer:

ejdencrejnoqnf3enrn3nf god is greatttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttt

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
28:solve: PLEASE HELP -0.25x+1.75x<-1.75+2.5x. (round your answer to the nearest hundredth)
Lena [83]

Answer:

Step-by-step explanation:

-0.25x+1.75x<-1.75+2.5 x

sift terms containing x to right and constant term to left

1.75<2.5 x+0.25x-1.75 x

1.75<2.75x-1.75x

1.75<1.00 x

or 1.75 <x

or x>1.75

7 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
Brandy has a collection of comic books. If she adds 15 to the number of comic books in her collection and
maxonik [38]
Let the collection of comic books be x.
4 times the number of comic books in her collection = 4x

3( x + 15 ) = 4x - 65
3x + 45 = 4x - 65
45 + 65 = 4x - 3x ( move all the similar variables to one side of the equation )
x = 110

ans : 110
4 0
3 years ago
The answer please help me this is a final
shepuryov [24]

Answer:

i don't know I don't have ideas

7 0
2 years ago
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