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Ugo [173]
3 years ago
12

Please help !!! I don’t know this brainliest?

Mathematics
2 answers:
Alekssandra [29.7K]3 years ago
7 0

Answer:

-1/2

It is a negative slope going down 1 over 2

Komok [63]3 years ago
4 0

Answer:

-2

Step-by-step explanation:

-2/1 = -2

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Any help would rlly appreciate it
Scrat [10]
Go to khan academy they show you how
7 0
3 years ago
Please help me with the questions please ASAP ASAP please please ASAP please please help please I’m begging please please
Anna007 [38]

Answer:

3/2

Step-by-step explanation:

The ratio of perimeters of similar polygons is the same as the ratio of the lengths of corresponding sides.

WX/AB = 12/8 = 3/2

6 0
3 years ago
Can you tell how old a lion is by looking at its nose? A professor at the University of Wisconsin-Madison conducted a study of d
Ghella [55]

Answer:

The residual age of a lion whose nose is 11% black and is 1.9 years old is -0.15.

Step-by-step explanation:

In regression, the difference between the observed value of the dependent variable (<em>y</em>) and the predicted value (\hat y) is known as the residual (<em>e</em>).

e=y-\hat y

The least square regression line is used to predict the value of the response or dependent variable (<em>y</em>) from the known value of the explanatory or independent variable (<em>x</em>).

The general form of a least square regression line is:

\hat y=\alpha +\beta x

The equation of the least squares regression line to predict the relationship between age (in years) and proportion of blackness in the lion’s nose is:

\hat y=0.8790+10.6471 x

Compute the predicted value of <em>y</em> for <em>x</em> = 0.11 as follows:

\hat y=0.8790+10.6471 x

  =0.8790+(10.6471\times 0.11)\\=0.8790+1.171181\\=2.050181\\\approx 2.05

The predicted value of <em>y</em> is, \hat y=2.05.

The observed value of the age of lion whose nose is 11% black is, <em>y</em> = 1.90.

Compute the residual age of this lion as follows:

e=y-\hat y

  =1.90-2.05\\=-0.15

Thus, the residual age of a lion whose nose is 11% black and is 1.9 years old is -0.15.

4 0
3 years ago
Rachel's gym charges a one-time registration fee of $45 and a monthly fee of $39. Which
Leto [7]

Answer: Its 39x + 45

Step-by-step explanation:

yes

4 0
3 years ago
Which point lies on the line described by the equation below?
ss7ja [257]

Answer:

E

Step-by-step explanation:

y+8=4(x-5)

Put the the E coordinates.

-8+8=4(5-5) \\0 = 4\cdot 0 \\\boxed{0=0\Longrightarrow E\in y+8=4x-20}

Hope this helps.

r3t40

7 0
3 years ago
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