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Reil [10]
2 years ago
8

I know the answer but the calculator doesn't seem to give the right one

Mathematics
1 answer:
Diano4ka-milaya [45]2 years ago
6 0

Answer:

Make sure the mode is on degree and not radian! Common mistake

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Its all in the picture please help as soon as possible
AVprozaik [17]
The first angle given is not needed. it is extra info.
so to start off you need to see that it is a subtraction problem. it is angle BEF minus angle GEF
90 degrees minus 39 degrees then it is all math.
angle BEG = 51 degrees
6 0
3 years ago
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In a one-way ANOVA, what is the difference between the among-groups variance MSA and the within-groups variance MSW?
LuckyWell [14K]

Answer:

MSR=MSA=\frac{SSR}{k-1}

And MSE=MSW=\frac{SSE}{N-k}

The difference is that MSA takes incount the variation between the groups and the grand mean, and the MSW takes in count the variation within groups respect to the mean of each group .

Step-by-step explanation:

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 j groups and on each group from j=1,\dots,j we have n_j 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}=6750+8000=14750  

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  

We can find the MSR=MSA=\frac{SSR}{k-1}

And MSE=MSW=\frac{SSE}{N-k}

The difference is that MSA takes incount the variation between the groups and the grand mean, and the MSW takes in count the variation within groups respect to the mean of each group .

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

8 0
3 years ago
Suzanne bought 50 apples at the apple orchard. She bought 4 times as many red apples as green apples. How many more red apples t
Gennadij [26K]
The problem is basically asking you _ x 4 = 50, so, what is 1/4 of 50? (12.5)
3 0
3 years ago
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WILL GIVE BRAINLEST PLZZ HELP MEEE
lisov135 [29]

Answer:

2

Step-by-step explanation:

(x,y)

7 0
2 years ago
Simplify the following expression using the distributive property: -8(2x - 5)
Misha Larkins [42]

Answer:

(B)-16+40

Step-by-step explanation: -8(2x-5)

-8*2=-16

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add the x to the answers...Then its -16x+40

Hope This Helps:)

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