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2 years ago

P + 1.6 <4; p=5 this too bahahhahahahahhahahahahhahahahhahahahahahhah

Mathematics

2 answers:

VLD [36.1K]2 years ago

6 0

False is what I got
Hope it’s right:)

iVinArrow [24]2 years ago

3 0

Answer:

This is false

Step-by-step explanation:

1.6 + 5 in 6.6 and 6.6 is a larger number than 4

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325.4 miles on 17.3 gallons

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<span>188 miles per gallon</span>

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2 years ago

How do I solve this question

nika2105 [10]

Answer:

Step-by-step explanation:

Sum = -12

Product = -48

Factors = -12 , 4

-12 + 4 = - 8 & -12 * 4 = -48

x² - 8x - 48 = x² - 12x + 4x - 4*12

= x(x - 12) + 4(x - 12)

= (x - 12) (x + 4)

5 0

2 years ago

If the coefficient of determination is 0.25 and the sum of squares residual is 180, then what is the value of SSY?

Gennadij [26K]

Answer:

And then $SSY=SS_{total}=\sum_{j=1}^n (y_j-\bar y)^2 =240$

C. 240

Step-by-step explanation:

Previous concepts

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 a multiple regression we want to know about the relationship between several independent or predictor variables and a dependent or criterion variable.

If we assume that we have $k$ independent variables and we have $j=1,\dots,j$ individuals, we can define the following formulas of variation:

$SS_{total}=\sum_{j=1}^n (y_j-\bar y)^2$

$SS_{regression}=SS_{model}=\sum_{j=1}^n (\hat y_{j}-\bar y)^2$

$SS_{error}=\sum_{j=1}^n (y_{j}-\hat y_j)^2 =180$

And we have this property

$SST==SSY=SS_{regression}+SS_{error}=SSR+180$

If we solve for SSR we got:

$SSR= SSY-180$ (1)

And we know that the determination coefficient is given by:

$R^2 = \frac{SSR}{SSY}$

We know the value os $R^2= 0.25$ and we can replace SSR in terms of SSY with the equation (1)

$R^2 =0.25= \frac{SSY-180}{SSY}= 1-\frac{180}{SSY}$

And solving SSY we got:

$\frac{180}{SSY}=1-0.25=0.75$

$SSY= \frac{180}{0.75}=240$

And then $SSY=SS_{total}=\sum_{j=1}^n (y_j-\bar y)^2 =240$

C. 240

7 0

2 years ago

Help Where is the first error in this proof?

ivanzaharov [21]

He subtracted the 29fron the 30

6 0

2 years ago

What is the area of a regular octagon with a apothem of 16 inches long and a side of 19 in Long round the answers to the nearest

azamat

To find the area of any regular (regular means all sides are = and all angles are =) poylgon when you know the length of the apothem and the length of the side you can use the formula:
A = (1/2)ap where a = the length of the apothem and p = the perimeter of the polygon. You can also use n*s in place of p where n = the number of sides of the polygon and s = the length of the side.

A= (1/2)(16)(19*8) (An octagon has 8 sides.)
A = 1216 in^2

3 0

3 years ago

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