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denpristay [2]
2 years ago
12

A European swallow flies about 14 meters in 1 second.

Mathematics
2 answers:
ivann1987 [24]2 years ago
5 0

Answer:

It could fly 12.6 kilometers.

Step-by-step explanation:

The European swallow fly speed is 12 meters per second.

We have to calculate how many kilometers it could fly in 15 minutes.

This can be calculated using the equivalent factors for each of the units:

- 1 km is equivalent to 1,000 meters.

- 1 minute is equivalent to 60 seconds.

11111nata11111 [884]2 years ago
5 0
ANSWER:
12.6 km

EXPLANATION:
If the swallow fly goes 14 m/s then you can multiply 14x60 to get 840m per minute.
From there you multiply 840x15 and get 12,600m for 15 minutes. You then divide 12,600/1000 to convert meters into kilometers and you get 12.6km.

Hope this helped!
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The distribution of the test statistic for analysis of variance is the F-distribution. true or false
lubasha [3.4K]

Answer:

True. See explanation below

Step-by-step explanation:

Previous concepts

Analysis of variance (ANOVA) "is used to analyze the differences among group means in a sample".  

The sum of squares "is the sum of the square of variation, where variation is defined as the spread between each individual value and the grand mean"  

If we assume that we have k groups and on each group from j=1,\dots,k we have k individuals on each group we can define the following formulas of variation:  

SS_{total}=\sum_{j=1}^p \sum_{i=1}^{n_j} (x_{ij}-\bar x)^2  

SS_{between=Treatment}=SS_{model}=\sum_{j=1}^p n_j (\bar x_{j}-\bar x)^2  

SS_{within}=SS_{error}=\sum_{j=1}^p \sum_{i=1}^{n_j} (x_{ij}-\bar x_j)^2  

And we have this property  

SST=SS_{between}+SS_{within}  

The degrees of freedom for the numerator on this case is given by df_{num}=k-1 where k represent the number of groups.  

The degrees of freedom for the denominator on this case is given by df_{den}=df_{between}=N-k.  

And the total degrees of freedom would be df=N-1

And the we can find the F statistic F=\frac{MSR}{MSE}

8 0
3 years ago
Please please please help me!
OleMash [197]

Answer:

<76

Step-by-step explanation:

Remark

You can't do this problem unless CD and E are all on the same line. If they are, then you can use || line properties.

Properties

<ABG = x                       Given

<ABG = <BGF               Alternate interior angles are equal.

<BGF = x                       Substitute

x + 2x - 9 = 180             Consecutive angles in a ||gram equal 180 degrees.

3x - 9 = 180                    Add 9 to both sides

3x - 9 +9 = 180 +9

3x = 189                         Divide by 3

x = 63

<DHG = 2x - 50            Given

<DHG = 2*63 - 50         Substitute for x

<DHG = 76

<IDC  = 76

<DHG and <IDC are corresponding angles and are equal; it is a property of parallel lines.

6 0
3 years ago
Answer me and get brainliest<br><br><br><br>pls find the volume
aalyn [17]

Answer:

6720 ft³

Step-by-step explanation:

Volume = \frac{1}{2} * base * height * length

Here the base is 14 ft, height is 24 ft and length is 40 ft

using the formula:

\frac{1}{2} * 14* 24* 40

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6 0
3 years ago
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Need help on this stastic and prob
sasho [114]

Answer:

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Step-by-step explanation:

7 0
3 years ago
G) (12d + 3) +-14d what's the answer​
Lena [83]

Answer: -2d+3

Step-by-step explanation:

6 0
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