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Dima020 [189]
4 years ago
15

WILL GIVE BRAINLIEST

Mathematics
2 answers:
Nuetrik [128]4 years ago
8 0
The mean is the sum of all 12 numbers divided by 12, which is 578.25 ~ 578.3. The variance is calculated by subtracting each score from the mean, squaring, and adding all such squares. Then divide by the number of terms (12) to get 68572.35. Take the square root to get the standard deviation, which is 261.9. So the correct answer is B.


Yuri [45]4 years ago
7 0

Answer:

mean is 578.3 deviation 261.9

Step-by-step explanation:


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What is the fraction form of -2.83333
Tju [1.3M]
283333/100000 would be the answer
4 0
3 years ago
Nolan plots the y-intercept of a line at (0, 3) on the y-axis. He uses a slope of 2 to graph another point. He draws a line thro
olga nikolaevna [1]

Answer:

The answer is

<h3>y = 2x + 3</h3>

Step-by-step explanation:

Equation of a line is y = mx + c

Where m is the slope

c is the y intercept

From the question the y intercept is 3

and the slope is 2

Substituting the values into the above equation

We have

<h3>y = 2x + 3</h3>

Hope this helps you

4 0
4 years ago
Read 2 more answers
PLEASE HELP ASAP!!!<br> Find the value of x to the nearest tenth.
aleksley [76]

Answer:

9.9

Step-by-step explanation:

a^2+b^c=c^2

15^2+b^2=18^2

225+b^2=324

b^2=99

b=9.94

x=9.94

3 0
3 years ago
I need the answer to this problem
chubhunter [2.5K]
After making six monthly payments on her car loan, Thomas's savings account will be lower.

6 0
4 years ago
1. (2x+5)+(3x-2)= <br> 2. (3x-2)-(2x+5)=<br> 3. (2x+5)-(3x-2=
DIA [1.3K]

Answer:

  1. 5x+3
  2. x -7
  3. -x +7

Step-by-step explanation:

Combine like terms. The associative and commutative properties of addition apply, as does the distributive property.

__

1. (2x+5)+(3x-2) = (2x +3x) +(5 -2) = 5x +3

__

2. (3x-2)-(2x+5) = 3x -2 -2x -5 = (3x -2x) +(-2 -5) = x -7

__

3. (2x+5)-(3x-2) = 2x +5 -3x +2 = (2x -3x) +(5 +2) = -x +7

_____

<em>Additional comment</em>

Note that swapping the order of operands in a subtraction problem (problems 2 and 3) will cause the sign of the result to reverse.

6 0
3 years ago
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