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vlabodo [156]
4 years ago
10

Dad mows the lawn. he mows a length of 156 meters in 856 seconds. at what speed was he moving​

Mathematics
1 answer:
Elis [28]4 years ago
3 0

Answer:

0.182 meters / second to the nearest thousandth.

Step-by-step explanation:

His speed = 156 / 856

= 0.182 meters / second.

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Which phase of inferential statistics is sometimes considered to be the most crucial because errors in this phase are the most d
Alex_Xolod [135]

The phase of inferential statistics which is sometimes considered to be the most crucial because errors in this phase are the most difficult to correct is "data gathering".

<h3>What is inferential statistics?</h3>

Inferential statistics are frequently employed to compare treatment group differences.

Some characteristics of inferential statistics are-

  • Inferential statistics compare treatments groups and make conclusions about the greater population of participants using measures from the experiment's sample of subjects.
  • Inferential statistics aids in the development of explanations for a condition or phenomenon.
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7 0
2 years ago
What is the standard deviation of this data set? Use a calculator to help you.
ale4655 [162]

Answer:

Standard deviation = 14.064

Step-by-step explanation:

We are given the following data;

        X                          X - Xbar                  (X-Xbar)^{2}

       20                     20 - 46 = -26                    676

       23                     23 - 46 = - 23                    529

       32                     32 - 46 = -14                      196

       36                     36 - 46 = -10                      100

       41                      41 - 46 = -5                         25

       43                     43 - 46 = -3                          9

       44                     44 - 46 = -2                          4

       45                     45 - 46 = -1                           1

       47                      47 - 46 = 1                            1

       54                      54 - 46 = 8                        64

       55                      55 - 46 = 9                        81

      59                       59 - 46 = 13                      169

       61                       61 - 46 = 15                       225

       63                       63 - 46 = 17                      289

       66                       66 - 46 = 20                <u>     400    </u>    

                                                    \sum(X-Xbar)^{2} <u>= 2769 </u>

Firstly we will calculate Mean, Xbar = \frac{\sum X}{n}

  Xbar = \frac{20+ 23+ 32+ 36+ 41+ 43+ 44+ 45+ 47+ 54+ 55+ 59+ 61+ 63+ 66}{15} = 45.93 ≈ 46

Now, Standard deviation formula is given by;

                   s = \sqrt{\frac{ \sum(X-Xbar)^{2}}{n-1}} = \sqrt{\frac{ 2769}{15-1}} = 14.064 .

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Simplify the expression so there is only one positive power for the base, -5
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Answer:

C. -5 power of 5

Step-by-step explanation:

-5 power of 7 / -5 power of 2

Soo, you subtract the exponent 7 by 2 and you are left with 5.

You are thus left with -5 to the power of 5.

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Referring to the figure, is the transformation a
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yes.

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90 Degree Rotation. When rotating a point 90 degrees counterclockwise about the origin our point A(x,y) becomes A'(-y,x).

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£164.83. Devide 300 by 1.82.






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