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aniked [119]
3 years ago
10

I need help with this problem. Find the standard score (z) such that the area above the mean and below z is about 34% of the are

a under the normal curve.
Mathematics
1 answer:
Natali [406]3 years ago
3 0
<span>For the normal distribution:
one standard deviation from the mean accounts for about 68.2% of the set

</span><span>two standard deviations from the mean account for about 95.4%
and three standard deviations from the mean account for about 99.7%.
Important to Understand z -values as they relate to the Standard Normal curve:
Below: z = 0, z = ± 1, z= ±2 , z= ±3 are plotted.
Note: z = 0 (x value the mean) 50% of the area under the curve is to the left and 50% to the right</span>
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What is the ordered pair solution for this system of equation X+y=8<br> Y=x-3
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Graph the image of square CDEF after a reflection across the x-axis​
Rina8888 [55]

Answer:

If you have a general point (x, y), and you reflect it across the x-axis, the coordinates of the new point will be:

(x,-y)

So we only change the sign of the y-component.

Now, if we do a reflection across the x-axis of a whole figure, then we apply the reflection to all the points that make the figure.

Then, we could just apply the reflection to the vertices of the square, then graph the new vertices, and then connect them, that is equivalent to graph the image of the square after the reflection.

The original vertices are:

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D = (0, 7)

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D' = (0, -7)

E' = (0, - 10)

F' = (0, - 10)

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5 0
2 years ago
Mr miller buys a new car for 25,000. he will pay a sales tax of $0.07 for every dollar of the price. he will pay a property tax
bezimeni [28]

Answer:

Step-by-step explanation:

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Property tax    (25000 / 1000)(14.62) <u>=  + $  365.50</u>

Total tax                                                      $  2115.50

8 0
3 years ago
The school that Emily goes to is selling tickets to a fall musical. On the first day of ticket sales the school sold24 adult tic
qwelly [4]

Answer:

Step-by-step explanation:

Let x represent the price of one adult ticket.

Let y represent the price of one student ticket.

On the first day of ticket sales the school sold 24 adult tickets and 3 student tickets for a total of $223.00. This means that

24x + 3y = 223 - - - - - - - - - - - -1

The school took in $152 on the second day by selling 7 adult tickets and 6 student tickets. This means that

7x + 6y = 152 - - - - - - - - - - - - - -2

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6y = 152 - 50.19 = 101.81

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3 0
3 years ago
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