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3 years ago

Evaluate the following expression when n=6. -6|n+3|

Mathematics

1 answer:

julia-pushkina [17]3 years ago

6 0

I believe the answer is -33

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How would you solve this, need help

spayn [35]

ok umm i fell asleep bye

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3 years ago

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What is the expanded form of the series represented below?

kirill [66]

Answer:

See below

Step.-by-step explanation:

Choice A has first term -3 and common difference 5. The formula for the kth term is -3 + (k - 1)5. It is an arithmetic series.

The required expanded form for the Sum is:

S5 = ∑ [-3 + (k - )5)]

k = 1

5 0

3 years ago

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Please answer this question based on the following data. SSTR = 6,750 H0: μ1= μ2=μ3=μ4 SSE = 8,000 Ha: at least one mean is diff

Nookie1986 [14]

Answer:

$P_v =P(F_{3,16}>4.5)=0.0180$

So on this case the best option for the answer would be:

between .01 and .025

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 $4$ groups and on each group from $j=1,\dots,5$ we have $5$ individuals on each group we can define the following formulas of variation:

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

$SS_{between=Treatment}=SS_{model}=\sum_{j=1}^p n_j (\bar x_{j}-\bar x)^2 =6750$

$SS_{within}=SS_{error}=\sum_{j=1}^p \sum_{i=1}^{n_j} (x_{ij}-\bar x_j)^2 =8000$

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 $df_{num}=k-1=4-1=3$ where k =4 represent the number of groups.

The degrees of freedom for the denominator on this case is given by $df_{den}=df_{between}=N-K=20-4=16$ .

And the total degrees of freedom would be $df=N-1=20 -1 =19$

We can find the $MSR=\frac{6750}{3}=2250$

And $MSE=\frac{8000}{16}=500$

And the we can find the F statistic $F=\frac{MSR}{MSE}=\frac{2250}{500}=4.5$

And with that we can find the p value. On this case the correct answer would be 3 for the numerator and 16 for the denominator.

$P_v =P(F_{3,16}>4.5)=0.0180$

So on this case the best option for the answer would be:

between .01 and .025

6 0

3 years ago

Jackson and Israel are going out. Jackson rent a paddle boat that has a flat fee of $10 and $2 every hour after that. Israel ren

Natasha_Volkova [10]

Answer: 6 hours

12 7 1st hour

14 10 2nd hour

16 13 3rd hour

18 16 4th hour

20 19 5th hour

22 22 6th hour

5 0

3 years ago

I need help please i must show work aswell please help!!

umka21 [38]

Your answer would be 6 because 2.5 times 4 is 10 and 60 divided by 10 is 6 and so you can check your work 2.5 times 4 times 6 is 60.

6 0

3 years ago