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Eva8 [605]
3 years ago
11

It has been estimated that a student's final grade in a course decreases by 5 points for every 2 days absent from class. If a st

udent misses 4 days, by how many points will the students final grade decrease.
Mathematics
1 answer:
OverLord2011 [107]3 years ago
3 0

Answer:

the final grade will decrease by 10 points

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Slope intercept for (0,4) (-5,0)
ruslelena [56]

Answer:

y = 0.8x + 4

Step-by-step explanation:

The slope is 0.8 and y intercept is 4.

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Graph a line with a slope of -2/5 that contains the point (-3,5)
kotykmax [81]

y=-\frac{2}{5}x+\frac{19}{5}

Further explanation:

We have to find the equation of the line first to graph the line.

The general form of slope-intercept form of equation of line is:

y=mx+b

Given

m=-\frac{2}{5}

Putting the value of slope in the equation

y=-\frac{2}{5}x+b

To find the value of b, putting the point (-3,5) in equation

5=-\frac{2}{5}(-3)+b\\5=\frac{6}{5}+b\\5-\frac{6}{5}+b\\b=\frac{25-6}{5}\\b=\frac{19}{5}

Putting the values of b and m

y=-\frac{2}{5}x+\frac{19}{5}

The graph is made by using online graphing tool Desmos.

Keywords: Equation of line, graph of line

Learn more about graphs at:

  • brainly.com/question/1557905
  • brainly.com/question/1554024

#LearnwithBrainly

4 0
3 years ago
4 is less than w, and 8 is greater than or equal to w​
sesenic [268]

Answer:

4 < w

8 > w

The greater than sign would have a line under it.

Step-by-step explanation:

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2 years ago
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Marta_Voda [28]

Answer:

12.57

Step-by-step explanation:

hope this helps

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Which is perpendicular to the line y=-3x-8y
atroni [7]

Answer:

I believe the answer is y = -7/3x

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When you rearrange the equation, y = -3x - 8y, you will get -7y = -3x.

We want the equation to be equal to y by itself. So we divide -7 from both sides, giving us the equation y = 3/7x.

The graph that is perpendicular to y = 3/7x is it's reciprocal: y = -7/3x

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