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kipiarov [429]
3 years ago
9

Helppp pleaseee ! choose one of the options !​

Mathematics
2 answers:
german3 years ago
6 0

Answer:

the last option is the answer

Maksim231197 [3]3 years ago
4 0

Answer:each additional pound adds about 1/2hour of cooking time.

Step-by-step explanation:

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NEED HELP FAST PLEASE !!!!Which of the following is an equation of the translation y = cos x, shifted π units to the right?
Verdich [7]

Answer:

2 one

Step-by-step explanation:

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2 years ago
I need the answer to C.
igor_vitrenko [27]

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The answer to c is an arc

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3 years ago
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Plz look at the attach photo . to help thank you
Elden [556K]

Answer:

your answer is correct.. its 10

Step-by-step explanation:

  1. you got to look at the length of each line
  2. observe the distance between each letter and calculate your answer

as you can see the line DC and EF are the same exact length.

CM =5

line CM is half of line DC. which means to fine the length of EF you must multiply 5 by 2 (5×2) to get the length of EF which is 10

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3 years ago
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Kruka [31]

Answer:

6.76-2.01\frac{2.55}{\sqrt{50}}=6.03    

6.76+2.01\frac{2.55}{\sqrt{50}}=7.49    

The 95% confidence interval would be given by (6.03;7.49)    

Step-by-step explanation:

Notation

\bar X represent the sample mean

\mu population mean (variable of interest)

s represent the sample standard deviation

n=50 represent the sample size  

Solution

The confidence interval for the mean is given by the following formula:

\bar X \pm t_{\alpha/2}\frac{s}{\sqrt{n}}   (1)

We can calculate the mean and the sample deviation we can use the following formulas:  

\bar X= \sum_{i=1}^n \frac{x_i}{n} (2)  

s=\sqrt{\frac{\sum_{i=1}^n (x_i-\bar X)}{n-1}} (3)  

The mean calculated for this case is \bar X=6.76

The sample deviation calculated s=2.55

In order to calculate the critical value t_{\alpha/2} we need to find first the degrees of freedom, given by:

df=n-1=50-1=49

We assume a standard confidence level of 0.95 or 95%, the value of \alpha=0.05 and \alpha/2 =0.025, and we can use excel, a calculator or a tabel to find the critical value. The excel command would be: "=-T.INV(0.025,49)".And we see that t_{\alpha/2}=2.01

Now we have everything in order to replace into formula (1):

6.76-2.01\frac{2.55}{\sqrt{50}}=6.03    

6.76+2.01\frac{2.55}{\sqrt{50}}=7.49    

The 95% confidence interval would be given by (6.03;7.49)    

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3 years ago
Is a trapezoid a 2 dimensional figure?
Ira Lisetskai [31]
A trapezoid<span> can be drawn on </span>2  <span>dimensional </span><span>surfaces like board. So it is a </span>2D shape.
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3 years ago
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