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Masja [62]
3 years ago
6

Which expressions are equivalent to 3x + 3(x + y)

Mathematics
1 answer:
Tanya [424]3 years ago
8 0

Answer:

A and B

Step-by-step explanation:

Given

3x + 3(x + y) ← factor out 3 from each term

= 3(x + x + y) → B

or

3x + 3(x + y) ← distribute the parenthesis

= 3x + 3x + 3y ← collect like terms

= 6x + 3y → A

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Please solution and answer a and b thanks you ​
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Answer:

A) 2280 and length is 12mm and width is 190mm

B) 190, 12

Step-by-step explanation:

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height:12mm

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Professor wonders whether a student's homework average (X) could be used to predict their final grade in the course (Y) . She ca
Anna11 [10]

Answer:

The dependent variable is the final grade in the course and is the vriable of interest on this case.

H0: \beta_1 = 0

H1: \beta_1 \neq 0

And if we reject the null hypothesis we can conclude that we have a significant relationship between the two variables analyzed.

Step-by-step explanation:

On this case w ehave the following linear model:

Y= 21.839 +0.724 X

Where Y represent the final grade in the course and X the student's homework average. For this linear model the slope is given by \beta_1 = 0.724 and the intercept is \beta_0 = 21.839

Which is the dependent variable, and why?

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Based on the material taught in this course, which of the following is the most appropriate alternative hypothesis to use for resolving this question?

Since we conduct a regression the hypothesis of interest are:

H0: \beta_1 = 0

H1: \beta_1 \neq 0

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