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2 years ago

Can u help me with this

Mathematics

1 answer:

Elena-2011 [213]2 years ago

3 0

54 are left for your questiom

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hat is the mean of the numbers given below? 2, 2, 8, 10, 15, 30, 36, 40, 50, 51 Report your answer in decimal form.

Sphinxa [80]

Answer:

Mean = average or the sum of all numbers divided by how many numbers there are.

2 + 2 + 8 + 10 + 15 + 30 + 36 + 40 + 50 + 51 = 244

244/10 = 24.4

7 0

2 years ago

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7x−9y<5 −2x+4y>5 Is (3,5) a solution of the system?

Rasek [7]

Yes, it is a solution.
when plugged in, it looks something like this.

21-45< 5
-24 <5. That fits the equation!

-6 + 20> 5
14 > 5. That also fits the equation, so it is a solution!

7 0

3 years ago

A multiple regression model involves 5 independent variables and a sample of 10 data points. If we want to test the validity of

Ber [7]

Answer:

The critical value is 6.26.

Step-by-step explanation:

It is provided that there are 5 independent variables involved in a multiple regression model and the sample consist of 10 data points.

The critical value of F to test the significance of the model is:

$\text{Critical Value}=F_{\alpha, (k, n-k-1)}$

Here,

k = number of independent variables

n = number of observations.

Then the critical value is:

$\text{Critical Value}=F_{\alpha, (k, n-k-1)}$

$=F_{\alpha, (5, 10-5-1)}\\=F_{0.05,(5, 4)}\\=6.2561\\\approx 6.26$

*Use a F-table.

Thus, the critical value is 6.26.

5 0

3 years ago

Can you prove that DEF = HGF.!? Justify your answer.

frosja888 [35]

Step-by-step explanation:

$In \: \triangle DEF \: \& \: \triangle HGF \\ EF \: \cong \: GF...(given) \\ \angle EFD \cong \angle GFH \\ (vertically \: opposite \: angles) \\ \ DF \: \cong \: HF...(given) \\ \therefore \: \triangle DEF \cong \triangle HGF \\ (By\: SAS \:criterion\: of \:congruence)$

7 0

2 years ago

Slice for 5x+c=k for x

Degger [83]

Answer:

A - x = (k-c)/5

Step-by-step explanation:

To solve this problem, we would solve for x like we would in 2x = 6 :

5x + c = k

5x = k-c (subtract c from both sides)

x = k/5 - c/5 (divide 5 on both sides)

x = (k-c)/5 (simplify)

4 0

1 year ago

Read 2 more answers