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Elanso [62]
3 years ago
15

In a standard normal curve, what percentile corresponds to a z score of 1.0?

Mathematics
1 answer:
mars1129 [50]3 years ago
5 0
Z score of 1 is .8413

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The coordinate grid shows points a through k. Which points are solutions to the system of inequalities 2x+y 8 please help this i
andre [41]

Answer:

The points that verify the system of inequalities are:

point E, pointF, and point G.

Step-by-step explanation:

Please see the attached image that illustrates the boundary lines in your system of inequalities.

The boundary line for the inequality 2x+y is depicted in green, while the boundary line for the inequality 2x-4y>8 is depicted in red.

By solving for y in each inequality, we understand which half-plane should be considered for the inequality:

First inequality (green boundary line) :

2x+y

This means that we are to consider the points below the green boundary line.

Second inequality (red boundary line) :

2x-4y >8\\2x-8>4y\\y

This means we have to consider the points below the red boundary line.

Recall as well that both conditions we arrived at have to be satisfied by the points that are solutions of both inequalities.

From the image, we can see that there are only three points that reside at the same time below the green and the red boundary lines. These points are: point E, pointF, and point G.

On the other hand, we have two points that lie on a boundary line (point J and H), but they should be ignored, since the system of inequalities contain just inequality symbols < or >, and not the "equal" sign.

5 0
3 years ago
A number increased by 100% and decreased by 20% is x. what is the number ? NEEDED TODAY
vodka [1.7K]

Answer:

Let's assume the number be 100.

According to the problem , 100 is increased by 100%.

So, new number will be 100+100=200

Now 200 will decreased by 20%.

So, 20% of 200= 0.20*200= 40.

So, again the number has been changed into 200+40=240.

So, x=240

Step-by-step explanation:

5 0
3 years ago
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Chuck runs laps around a track. The table shows how long it takes him to run different numbers of laps. How long would it take C
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It would take him 25 minutes to run 5 laps
8 0
3 years ago
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Distribute. -3(-2x - 1)
ANTONII [103]

I believe the answer should be 6x+3

6 0
3 years ago
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60 marks out of 75 full marks<br>express in percent<br><br>​
DochEvi [55]
80 percent

Explanation:
Divide 60 by 75 and get the outcome of .80
3 0
3 years ago
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