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azamat
3 years ago
9

Given f(x)=2x+3 find x=9 show your work

Mathematics
1 answer:
Allushta [10]3 years ago
7 0

Answer:

f(9) =21

Step-by-step explanation:

I will assume you want to find f(9) when x=9

Let x=9

f(9) = 2(9) +3

    = 18+3

     =21

f(9) =21

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Step-by-step explanation:

Given data : 378, 361, 350, 375, 200, 391, 375, 368,  321

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Variance = \dfrac{\sum^n_{i=1} (x_i-\overline{x})^2}{n-1}

\sum^n_{i=1} (x_i-\overline{x})^2 = (31.44)^2+(14.44)^2+(3.44)^2+(28.44)^2+(-146.56)^2+(44.44)^2+(28.44)^2+(21.44)^2+(-25.56)^2\\\\=27394.2224

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4 0
3 years ago
The number of children at the liberty was 3 times the number of adults. The total number of people at the liberty was 48. How ma
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How to solve the system of equations algebraically for all values of x, y, and z
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Then we multiply -2*(2) and add it to (3) 
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Multiply  2*(5) and add it to (4)
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Solution (x,y,z) = (1,4,-2)

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