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goldfiish [28.3K]
3 years ago
7

Question 18 Calculate the mean 12, 2, 9, 12, 10

Mathematics
2 answers:
kramer3 years ago
6 0

Answer: 9

Step-by-step explanation:

first u have to add up all the numbers "12 + 2 + 9 + 12 + 10" and that's 45 then u have to divide by how many numbers there are, so there's 5 numbers. ur dividing "45/5" which is 9 so the mean is 9

mark as brainly plss

Schach [20]3 years ago
3 0

Answer:

Mean = 9

Step-by-step explanation:

The mean is the average of a data set.  Given the values, 2, 9, 10, 12, 12:

Add all the numbers in the data set, and divide its sum by the number of items in the set:

Mean = \frac{2+9+10+12+12}{5} =  \frac{45}{5} = 9

Therefore, the mean of the given data set is 9.

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Simplify: (8x4)(4x3)/7x2<br> A. 32x5/7<br> B. 1/28x<br> C. 1/3x<br> D. 7/9x4
BlackZzzverrR [31]
The Answer is A: 

Simplify the following:
(8×4 x^4 x^3)/(7 x^2)

Combine powers. (4 x^3×8 x^4)/(7 x^2) = (4 x^(4 + 3 - 2) 8)/7:
(4×8 x^(4 + 3 - 2))/7

4 + 3 - 2 = 5:
(4×8 x^5)/7

4×8 = 32:
Answer:  (32 x^5)/7
8 0
3 years ago
If m∠XWZ = 90, what is x?
o-na [289]

Answer:

X=11

Step-by-step explanation:

(5x+5)+(2x+8)=90

combine like terms

7x+13=90

subtract 13 from both sides

7x=77

divide 7 on both sides

x=11

check work

(5(11)+5)+(2(11)+8)=90

8 0
3 years ago
Read 2 more answers
0.1 is 1/10 of what??///
Novay_Z [31]

Answer:

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Step-by-step explanation:

8 0
3 years ago
I why is 1/3 divided into 7 equal parts
Mekhanik [1.2K]

Step-by-step explanation:

Because the number seven is higher than one Third.

8 0
2 years ago
Please help I would really Appreciate it so much ​
expeople1 [14]

Answer:

I think it is b

Step-by-step explanation:

it is 3a times all of the numbers in parenthases

hope you pass your test

HAPPY NEW YEAR

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3 years ago
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