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ale4655 [162]
3 years ago
11

She records the number of hours of TV watched for her 6 students. The times are: 4.4, 2.5, 5.5, 2.8, 4.8, and 4.0.

Mathematics
1 answer:
Varvara68 [4.7K]3 years ago
6 0

so what do you want us to find out??

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Find the equation of the graphed line.
GrogVix [38]

Answer:

  a.  y = -1/2x - 2

Step-by-step explanation:

The correct answer choice can be determined by finding the slope of the line. The slope is the ratio of rise to run.

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<h3>slope</h3>

The x-intercept is 4 units left of the y-axis. As the line "runs" those 4 units, it "rises" -2 units to intercept the y-axis at -2. The slope of the line is ...

  m = rise/run = -2/4 = -1/2

In the slope-intercept form of the equation of a line, the slope is the coefficient of x. This information is sufficient to let us choose the first answer choice.

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<h3>equation</h3>

The slope-intercept equation is ...

  y = mx +b . . . . . . . slope m, y-intercept b

We know the slope is -1/2, and the y-intercept is where x=0, at y=-2. Then the equation is ...

  y = -1/2x -2 . . . . . matches choice A

_____

<em>Additional comment</em>

When answering multiple-choice questions, you only need to do enough work to tell which answers are <em>not</em> viable.

When we plot the points, we see that the line has negative slope. (eliminates choice C). The slope is shallow, rather than steep (the x-intercept is farther from the origin than the y-intercept), so the magnitude of the slope is less than 1 and choices B and D are eliminated.

8 0
1 year ago
Z = { x:x is an integer, x ≥ - 3 and x ≤ + 3}​
tankabanditka [31]

Answer:

If this is asking for the set:

Z = {-3, -2, -1, 0, 1, 2, 3}

Step-by-step explanation:

Z is the set of all integers and it appears that you are being asked for the values in the set Z that are within the range:  -3 ≤x ≤ 3

5 0
2 years ago
Find the perimeter.Simplify your answer.
Alchen [17]

Answer:

22w - 18

Step-by-step explanation:

To find the perimeter we have to add up all the sides

10w-10+w+1+10w-10+w+1

combine light terms

22w - 18 would be our answer

3 0
2 years ago
Read 2 more answers
I need help on this problem​
Mamont248 [21]

Answer:

80

Step-by-step explanation:

because you have to do (11+11)+(9+9)+(10+10) and you would get 22,18,20 and add all together and get 80 because you have to do 22+18=40 then add the remaining 20 and you would get 80

6 0
3 years ago
Change 5 feet 10 inches to centimetres
Vesnalui [34]

Answer:

177.8

Step-by-step explanation:

There are 30.48 centimeters per foot so multiply 30.48 by 5. And there is 2.54 centimeters in a inch so multiply 2.54 by 10. And then add the totals together to get 177.8

3 0
3 years ago
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