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VikaD [51]
3 years ago
15

How do you find the mean?

Mathematics
2 answers:
svetlana [45]3 years ago
7 0
Add all the numbers in the list then divide it by how many numbers are in that list.       Ex. 5,8,1,4 Would be: 5+8+1+4= 18 divided by 4 which is 4.5
dalvyx [7]3 years ago
7 0
To find the mean of a data set, you need to take all the data in the set and add them together.

Example: Sarah scored these numbers on her midterms every quarter: 89, 97, 76, & 62. What is the mean of her test scores?

So, add all the scores together.

89 + 97 + 76 + 62 = 324

After adding the scores together, you need to divide the sum by the number of numbers in the data set.

324 ÷ 4 = 81

So, the mean, or average of her test scores is 81. 

I hope I helped :)

- Shay❤
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Solve the equation for z and approximate the value of z <br> 0.5*e^​4z ​​ =13
frutty [35]
I'm going to write out the work and take a pic. hope this helps you understand if not, feel free to ask me Q's! :)

3 0
3 years ago
Part 3: Use the information provided to write the standard form equation of each circle
Ber [7]

Answer:

9. \displaystyle (x - 7)^2 + (y - 15)^2 = 25

8. \displaystyle (x - 1)^2 - (y - 10)^2 = 49

7. \displaystyle (x + 5)^2 + (y + 19)^2 = 9

Step-by-step explanation:

\displaystyle [x - h]^2 - [y - k]^2 = r^2 → Hyperbola\:Equation \\ [x - h]^2 + [y - k]^2 = r^2 → Circle\:Equation \\ [h, k] → Centre

According to the equations in the exercises, in the parentheses, ALL NEGATIVE SIGNS give the OPPOSITE terms of what they REALLY are, so be EXTREMELY CAREFUL with your translations:

9. [4, 11]

+ 3 + 4

_____

[7, 15] → (x - 7)² and (y - 15)²

8. [−2, 8]

+ 3 + 2

_____

[1, 10] → (x - 1)² and (y - 10)²

7. [−8, −14]

+ 3 - 5

______

[−5, −19] → (x + 5)² and (y + 19)²

** NOTISE THAT THE RADII <em>NEVER</em><em> </em>ALTER.

I am joyous to assist you anytime.

4 0
3 years ago
Read 2 more answers
The ratio of men to women working for a company is 3 to 2 . If there are 26 women working for the company, what is the total num
Sergio [31]
3/2=x/26
26*(3/2)=x
39=x
39+26=65
65 is the total number of employees.
3 0
4 years ago
Why are prefixes used in naming covalent compounds
Nataly_w [17]

Answer:

the atoms can have different numbers of valence electrons

6 0
3 years ago
An investor has an account with stock from two different companies. Last year, his stock in Company A was worth $1790 and his st
stiv31 [10]

Answer:

20.7%

Step-by-step explanation:

Amount of stock increased in Company A = 20% of 1790

           = 0.20 * 1790 = $ 358

Investor's stock in company A this year = 1790 + 358 = $ 2148

Amount of stock increased in Company B = 22% of 1000

           = 0.22 * 1000= $ 220

Investor's stock in company B this year = 1000 + 220 = $ 1220

Total amount in investor's stock account  = 2148 + 1220 = $ 3368

Increased amount = 3368 - 2790 = $ 578

Increase percentage = \frac{578}{2790}*100 = 20.71

                                   = 20.7%

7 0
3 years ago
Read 2 more answers
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