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3 years ago

Greatest common factor for 32-4x

Mathematics

1 answer:

Anastasy [175]3 years ago

8 0

Answer:

out of

−

(

−

)

Step-by-step explanation:

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Xét tính đồng biến nghịch biến của hàm số: y=-x^4-2x^2+5

lana66690 [7]

Answer:

x=77

Step-by-step explanation:

5 0

3 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

3 years ago

Solve 3x - 9x + 7 - 3 = -8. a. 6 b. -6 c. 2 d. -2

Romashka-Z-Leto [24]

Answer: C. 2

Step-by-step explanation:

1. combine like terms

-6x + 4 = -8

2. Make x be by itself by subtracting -4 by both sides of the equal sign

-6x = -12

3. Divide both sides by -6, then negatives will cancel out

x= 2

(hope this helped)

8 0

3 years ago

Read 2 more answers

Gabrielle is 15 years older than mikhail. the sum of their ages is 109 . what is mikhail's age?

laiz [17]

It would depend but Mikhail's possible age could be 47.

5 0

3 years ago

What are the first 4 terms of the geometric sequence a1 = 5 and r = ‒3?

egoroff_w [7]

Answer:

-135

Step-by-step explanation:

tn=ar^n-1

=5*(-3)^4-1

=5*(-3)^3

=-135

4 0

4 years ago