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3 years ago

PLEASE HELP ASAP!!! CORRECT ANSWER ONLY PLEASE!!!

Mathematics

2 answers:

Butoxors [25]3 years ago

7 0

The mean of a dataset is simply the sum of the elements, divided by how many elements you have.

In your case, you have a dataset of 10 elements, so we will divide by 10.

The sum of the elements is

$5+8+9+11+7+7+8+9+12+7=83$

Which implies that the average is

$\dfrac{83}{10}=8.3$

Which should be approximated to 8.

LenKa [72]3 years ago

5 0

Answer: 8.3

<u>Step-by-step explanation:</u>

Mean is "average"

Add the numbers and divide their sum by the number of potatoes (10).

5 + 7 + 8 + 9 + 11 + 7 + 8 + 9 + 12 + 7

= 20 + 20 + 15 + 28

= 83

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prohojiy [21]

The sketch of the parabola is attached below

We have the focus $(a,b) = (2, -0.5)$
The point $P(x,y)$
The directrix, c at $y=-1.5$

The steps to find the equation of the parabola are as follows

Step 1
Find the distance between the focus and the point P using Pythagoras. We have two coordinates; $(2, -0.5)$ and $(x,y)$ .
We need the vertical and horizontal distances to find the hypotenuse (the diagram is shown in the second diagram).
The distance between the focus and point P is given by
$\sqrt{ (x-a)^{2}+ (y-b)^{2} }$

Step 2
Find the distance between the point P to the directrix $c$ . It is a vertical distance between y and c, expressed as $y-c$

Step 3
The equation of parabola is then given as
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katrin2010 [14]

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