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Scorpion4ik [409]
3 years ago
9

Let f(x) = 9x - 4.5. Find the value of f(2).

Mathematics
2 answers:
defon3 years ago
7 0
9(2)-4.5=13.5 i think
wel3 years ago
4 0
<span>f(x) = 9x - 4.5
Substitute 2 for x
f(2) = 9(2) - 4.5
Multiply 9 by 2
f(2) = 18 - 4.5
Subtract
Final Answer: f(2) = 13.5</span>
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Answer:

x^2 - 10x + 25 = 17

Step-by-step explanation:

Please use " ^ " to denote exponentation:

x^2 - 10x = -8

x^2 - 10x + 25 = 17

x^2 - 10x + 25 = -8

x^2 - 10x - 25 = -33

Begin with x^2 - 10x = -8.  Here's the process for completing the square:

1.  Take half of the coefficient of x and square the result:

    (1/2)(-10) = -5, and then (-5)^2 = + 25

2.  Add this 25 to the first two terms of x^2 - 10x = -8 and also to the      constant -8:    x^2 - 10x + 25 = -8 + 25, or     x^2 - 10x + 25 = 17

3.  Match this result to one of the given possible answers.  Turns out that the given possible answer matching our result is the first one:

x^2 - 10x + 25 = 17

     

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blagie [28]

Answer:

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Step-by-step explanation:

The scores of team A and B is 16 and 21.

if 16 = 80, The ratio of 16 to 21 is 5.

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