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Arisa [49]
2 years ago
13

PLEASE HELP ASAP!! the slope of a line is -2. Two points on the line are (eight, a) and (2, 4). what is the value of a? ​

Mathematics
1 answer:
Serggg [28]2 years ago
5 0

Answer:

a=4

Step-by-step explanation:

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Z-12=4<br><br> what is Z worth?
Gnoma [55]

Answer:

Z=16

Step-by-step explanation:

just add 12 to both sides so you are left with only Z on one side

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3 years ago
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PLZ ANSWER ASAP!!!!! Part B
bazaltina [42]

The equation of the linear regression  is \^ y = 3.58125\^x + 202.575

<h3>Graphing tool</h3>

To determine the line of best fit, we make use of a graphing tool

See attachment for the graph of the line of best fit

<h3>The equation</h3>

From the graphing tool, we have the following calculation summary

  • Sum of X = 440
  • Sum of Y = 3601.5
  • Mean X = 44
  • Mean Y = 360.15
  • Sum of squares (SSX) = 1440
  • Sum of products (SP) = 5157

The regression Equation is then represented as:

\^y = b\^x + a

Where:

b = \frac{SP}{SSX} and a = \bar y - b \times \bar x

b = \frac{5157}{1440}

b = 3.58125

Also, we have:

a = \bar y - b \times \bar x

a= 360.15 - (3.58\times 44)

a = 202.575

So, the linear regression equation is:

\^ y = 3.58125\^x + 202.575

Read more about linear regression at:

brainly.com/question/17844286

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2 years ago
Rosalie evaluates the numerical expression 6+4 7 -1.
siniylev [52]
6+47=53
53-1=52
that’s all the steps, i hope it helps
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3 years ago
Find the total fare with 15% tip: 1 passenger, 512 miles.
Darina [25.2K]

Answer:

37.92

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Find the value of 15 minus 8 divided by 2
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Answer:

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Step-by-step explanation:

15 - 8 = 7

7 / 2 = 3.5

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