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3 years ago

Pick the Quadrant that you would plot (4,2)

Mathematics

2 answers:

Pavel [41]3 years ago

7 0

Quadrant 1 Reason being all the positive are housed in quadrant 1

Marina86 [1]3 years ago

4 0

Answer:

D.) Quadrant I

Step-by-step explanation:

The quadrants start from Quadrant I (in the top left) and continue counter-clockwise to Quadrant II, Quadrant III, and Quadrant IV

Quadrant I = (+,+)

Quadrant II = (-,+)

Quadrant III = (-,-)

Quadrant IV = (+,-)

Now in this case, (4,2) is positive in the x value, and positive in the y value - so it belongs in Quadrant I!

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Unknown Angle Problems (with algebra)

Natalija [7]

the answer is on the picture with solving

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2 years ago

The area of a rectangular wall of a barn is 100 square feet. It’s length is 10 feet longer than twice it’s width. Find the lengt

lapo4ka [179]

Answer:

The length would be 30 and the width would be 20

Step-by-step explanation:

For the purpose of this, we'll set the width as x. We can then define the length as x + 10 since we know it is 10 ft longer than the width. Now we can use those along with the perimeter formula to solve for the width.

P = 2l + 2w

100 = 2(x + 10) + 2(x)

100 = 2x + 20 + 2x

100 = 4x + 20

80 = 4x

20 = x

Now since we know that the width is 20ft, we can add 10ft to it to get the length, which would be 30ft.

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3 years ago

What is the area of this

kirill115 [55]

Answer:

Step-by-step explanation:

Since the figure is a square, the area is (1/3)^2 or 1/3 x 1/3

The area is 1/9 square inches.

7 0

3 years ago

I REALLY NEED HELP!!! PLEEEEEASE

algol [13]

Answer:

I think its 4.

Step-by-step explanation:

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3 years ago

What is the hypothesis that the ANOVA F-test is used for a multiple regression model Y = ?0 + ?1 X1+ ?2 X2+ ?3 X3 + A. H0: ?1 =

Vanyuwa [196]

Answer:

So the correct option for this case would be C:

H0: $\beta_1 =\beta_2 =\beta_3$

H1: At least one $\beta_i \neq \beta_j , i,j=1,2,3$

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"

When we conduct an ANOVA test to test the coefficients for the regression, the correct system of hypothesis are:

The hypothesis for this case are:

Null hypothesis: $\beta_{1}=\beta_{2}=\beta_{3}$

Or on other words we want to check if each variable X1, X2 and X3 NOT have a significant effect on the regression.

Alternative hypothesis: Not all the means are equal $\mu_{i}\neq \mu_{j}, i,j=1,2,3$

Or on other words we want to check if at least one of the variables( X1, X2 or X3), have a significant effect on the regression.

So the correct option for this case would be C:

H0: $\beta_1 =\beta_2 =\beta_3$

H1: At least one $\beta_i \neq \beta_j , i,j=1,2,3$

4 0

3 years ago