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bulgar [2K]
3 years ago
14

Assume the random variable X is normally​ distributed, with mean of 50 and a standard deviation of 9. Find the 9th percentile.

Mathematics
1 answer:
vovangra [49]3 years ago
7 0

Answer:

37.94

Step-by-step explanation:

the 9th percentile is equal to a zscore of -1.34

-1.34=(x-50)/9

x=37.94

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Help <br>and show each step.​
kherson [118]

Answer:

\frac{9.7 \times 4.13}{8.08 - 3.9}  \\  \frac{40.06}{4.18}   \\ 9.58 \:  \:  \:  \:  \: answer

4 0
3 years ago
What would a line parallel to 4x - 3y = 6 have a slope of
Gennadij [26K]
Hi there!

All sets of parallel lines must have the same slope, as this allows the line to go to infinity without intersecting. 
In order to find the slope of 4x-3y=6, we need to put the equation in y=mx+b form. The m value will represent the slope.
4x-3y=6
-3y=-4x+6
y=4/3x-2

Therefore the slope would be 4/3. 

Hope this helps!

7 0
3 years ago
What linear function equation can be represented by the set of ordered pairs?
AlekseyPX

Answer:

The equation of the line is y = 3/4x - 3

Step-by-step explanation:

To find the equation of the line, pick any two points and find the slope.

m(slope) = (y2 - y1)/(x2 - x1)

m = (6 - 0)/(12 - 4)

m = 6/8

m = 3/4

Now that we have the slope, we can use the slope and point-slope form to find the equation in slope intercept form.

y - y1 = m(x -x1)

y - 6 = 3/4(x - 12)

y - 6 = 3/4x - 9

y = 3/4x - 3

5 0
3 years ago
If the diagonal of the sandbox measures 14 feet, which best describes the shape of the sandbox? a rectangle, because angle c is
LenKa [72]

The shape which describe the shape of the sandbox is "A quadrilateral, because angle c and angle x are acute."

<h3>What is Quadrilateral?</h3>

A quadrilateral is a four-sided polygon, having four edges and four corners.

Here, Diagonal = 14 ft.

          Length = 12 ft.

          Width = 8 ft.

14² = 196,  12² = 144, 8² = 64

  8² + 12² ≠ 14²

so it is not a rectangle.

Now, 14² < 12² + 8²

this condition does not occur in rectangle, so it will be a quadrilateral and here sum of square of two adjacent side is greater than the square of third side (Diagonal). So that is an acute angle.

From this situation we can conclude that:

Thus, the shape which describe the shape of the sandbox is "A quadrilateral, because angle c and angle x are acute."

Learn more about Quadrilateral from:

brainly.com/question/13805601

#SPJ1

8 0
2 years ago
What is x:<br><br><br> 1. x ÷ 3/5 = 10/9<br><br><br> 2. 1/2x = 2/15
malfutka [58]

Answer:

1. x = 2/3

2. x = 4/15

I hope it helps you

:-()

7 0
3 years ago
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