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victus00 [196]
3 years ago
5

What the property says that 5+13=13+5

Mathematics
2 answers:
Dmitry [639]3 years ago
7 0

Answer:

true it is true relly it is

Pavlova-9 [17]3 years ago
4 0

Answer: its true

Step-by-step explanation:

i got it right

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AlladinOne [14]
The work to your question

6 0
3 years ago
Find the diameter of a circle with an area of 6767 square centimeters.
scZoUnD [109]
  • Area=6767cm²

Diameter be d

Radius be r

  • πr²=6767
  • r²=6767/π
  • r²=2155
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Diameter=2r=46.4(2)=92.8cm

6 0
2 years ago
Read 2 more answers
A sample of 15 commuters in Chicago showed the average of the commuting times was 33.2 minutes. If s = 8.3 minutes, find the 95%
OleMash [197]

Answer:

The 95% confidence interval of the true mean.

(29.4261 ,36.9739)

Step-by-step explanation:

<u>Step :- (i)</u>

Given sample size 'n' =15

sample of the mean x⁻ = 33.2

The standard deviation of the sample 'S' = 8.3

<u>95% of confidence intervals</u>

<u></u>(x^{-} - t_{\alpha } \frac{S}{\sqrt{n} } ,x^{-} + t_{\alpha }\frac{S}{\sqrt{n} } )<u></u>

<u>Step:-(ii)</u>

<u>The degrees of freedom γ=n-1 = 15-1=14</u>

The tabulated value t = 1.761 at 0.05 level of significance.

now substitute all possible values, we get

(33.2 - 1.761\frac{8.3}{\sqrt{15} } ,33.2+ 1.761\frac{8}{\sqrt{15} } )

After calculation , we get

(33.2-3.7739 , 33.2+3.7739

(29.4261 ,36.9739)

<u>Conclusion</u>:-

the 95% confidence interval of the true mean.

(29.4261 ,36.9739)

8 0
3 years ago
8x+6+4x+38=180 what’s the answer
Pavlova-9 [17]

x= 34 /3  thats what I got 34/3=11.333333


7 0
3 years ago
Read 2 more answers
In order, what are the 5 steps taken to solve a scaling problem?
Dmitry [639]
5 Steps to Solving the Problems With Your Problem Solving
Step 1: Pin the Problem. Clearly define the issue at hand. ...
Step 2: Identify the Issues. Start breaking down the problem into subcomponents. ...
Step 3: Generate Hypotheses and Prioritize Proving Them. ...
Step 4: Conduct Your Analysis. ...
Step 5: Advance Your Answer.
8 0
3 years ago
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