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galben [10]
3 years ago
13

Find the equations of the line. Y=____x + ____

Mathematics
2 answers:
Tomtit [17]3 years ago
7 0

Answer:

y = 2/3x + 4

Step-by-step explanation:

Find slope (or m):

m = y2 - y1 / x2 - x1

Pick any 2 coordinates: I will pick (0, 4) and (3, 6).

m = 6 - 4 / 3 - 0

m = 2 / 3

m = 2/3

Find y-intercept (or b):

The y-intercept is when x = 0; in this case when x = 0, y = 4.

Shalnov [3]3 years ago
3 0

Answer:

y=2/3x+4

Step-by-step explanation:

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3 years ago
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Is this is right, please help
frozen [14]
7:54...10:55 - 33 minutes is 10:22.  Then subtract 2 hours, brings you to 8:22.  Then subtract 28 minutes, and is 7:54
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Find the circumference of a circle whose area is equal to 64π^2​
PilotLPTM [1.2K]

Answer:

14 6/7 is the circumference

Step-by-step explanation:

you first of all look for the radius using the formulae multiply both sides by the reciprocal of 22/7

7/22 ×22/7r=64×7/22=224/11{2 4/11)

2 4/11 is the radius

cir =2×22/7×2 4/11

2×22/7× 26/11=104/7

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all i can do but am not sure sorry

7 0
2 years ago
Solve this plsssssss
Naddik [55]

Answer:

On the x-axis, plot to the left at -4.

From the point -4, go up 1 and to the LEFT 2.

When you draw yours line, it is a dashed line so leave a little space in it.

Then you should shade above the line.

4 0
2 years ago
The owner of Maumee Ford-Mercury-Volvo wants to study the relationship between the age of a car and its selling price. Listed be
nadya68 [22]

Answer:

a= 13.15 years

b= -0.62 years/$

Step-by-step explanation:

Hello!

Given the variables

Y: Age of a used car. (years)

X: Price of a sold used car. ($000)

The linear regression model is:

E(Y)= α + βXi

The estimated equation is:

^Y= a + bXi

a= (\frac{sumY_i}{n} ) - b(\frac{sumX_i}{n} )

a= 13.15 years

b= \frac{(sumX_iY_i-\frac{(sumX_i)(sumY_i)}{n} }{sumX_i^2-(\frac{(sumX_i)^2}{n} )}

b= -0.62 years/$

Then ^Y= 13.15 - 0.62Xi

Mean Y= 8.92

Mean X= 6.91

∑Y= 107

∑Y²=1009

∑X=82.90

∑X²=615.29

∑XY=712.9

Hope it helps!

5 0
3 years ago
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