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tiny-mole [99]
3 years ago
7

5(n+3)+4n Simply the expression

Mathematics
2 answers:
dezoksy [38]3 years ago
8 0
5(n + 3) + 4n

5n + 15 + 4n     Distributive property

5n + 4n = 9n      Combine like terms

9n + 15                Final answer

Answer:  9n + 15

mina [271]3 years ago
5 0
5(n+3)+ 4n
= 5n+ 5*3+ 4n (distributive property)
= (5n+ 4n)+ 15 (combine like terms)
= 9n+ 15

The final answer is 9n+15~
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D No, because the cards are not being replaced in the deck after they are turned over, the independence condition has not been met.

Step-by-step explanation:

7 0
3 years ago
How many days are in a year without weekends?
Sauron [17]
There are 365 days in a year.
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5 0
3 years ago
Help PLZ <br> plz tell me which should i choose.
Alex_Xolod [135]

Answer:

4

Step-by-step explanation:

If Log a×=16diameter then value of log =4

3 0
3 years ago
What is the solution to this equation? −1/4(x+1 2/3)=−2 1/5
pogonyaev

Answer:

x = 107/15

Step-by-step explanation:

Our first step should be to turn all of the mixed fractions into improper fractions. So, 1 2/3 becomes 5/3, and -2 1/5 becomes -11/5. We now get -1/4(x + 5/3) = -11/5. Now we should divide both sides by -1/4, and we get x + 5/3 = -11/5 x -4 = 44/5. So x + 5/3 = 44/5. We want the denominator to be equal on both sides so a common denominator could be 15. 5(5)/3(5) = 25/15. 44(3)/5(3) = 132/15. So now we have x + 25/15 = 132/15. We subtract both sides by 25/15 and we get x = 107/15.

7 0
2 years ago
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
4 years ago
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