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Mrrafil [7]
2 years ago
7

Find the mean of the given data set: (12, 2, 6, 3, 3, 19)

Mathematics
2 answers:
Savatey [412]2 years ago
4 0

Answer:

Step-by-step explanation:

hope this helps you

MakcuM [25]2 years ago
4 0

Answer: the mean is 7.5

Step-by-step explanation:

First u would add all of the numbers 12+2+6+3+3+19 to get 45

Then u have to divide the answer by how many numbers there are to get 7.5

That is how I got the answer 7.5.

Could u plz tell me if I’m wrong and sorry if I am. I have not done this in a while but I think that this is correct.

Have a fantastic day!

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You are told that the triangle is a right triangle so you know that the angle ABC is 90 degrees. From there you can say that the edition of both expressions will be equal to 90. You use this information to create an equation as the one I showed and solve for x using distributive property, combining like terms, opposite operations and commutative property. Once you have the value of x you can substitute into each expression to find out the measurement of ABD and DBC

6 0
2 years ago
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The sum of 3 times one number, x, and 6 times a second number, y, is 111. If the sum of the two numbers is 27, find the two numb
salantis [7]

Step-by-step explanation:

using elimination method because this is a simultaneous equation

3×x+6×y=111

x+y=27

1×[3x+6y=111]

3×[x+y=27]

3x+6y=111—equation 1

3x+3y=81—equation 2

substrate equation 1 from equation 2

3y=30

divide both sides by 3

y=10

substitute 10 for y in equation 1

3x+6y=111

3x+6(10)=111

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6 0
1 year ago
Solve for x. please i need know
miss Akunina [59]

Answer:

x = 18

Step-by-step explanation:

Vertically opposite angles are equal.

x + x + x + 90 = 144

         3x + 90 = 144  

Subtract  90 from both sides

                 3x = 144 - 90

                 3x = 54

Divide both sides by 3

                   x = 54/3

x = 18

4 0
2 years ago
Help this is due today!!!!
KIM [24]

\frac{4}{32}  \times 100 = 12.5\%
7 0
2 years ago
Factor the polynomial completely. 4x3 – 12x2 + 7x – 21 4x2(x – 3) + 7(x – 3) which is the completely factored polynomial?
Brilliant_brown [7]
4x^3-12x^2+7x-21=(x-3)(4x^2+7)
7 0
3 years ago
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