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LenaWriter [7]
3 years ago
9

What is the domain of function of f(x)=-2x+4x

Mathematics
1 answer:
dem82 [27]3 years ago
4 0

Answer:

Domain= x∉Real numbers

Step-by-step explanation:

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The first one is 1.12867 because you need to set it up like this.
4=3.14(x)squared
4/3.14=x(squared)
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The second one is done simply by multiplying it out.
A=3.14(3x)squared
A=3.14(9x[squared])
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Answer:

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3 years ago
Alicia works out 7.5+4.8 in her head
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3 years ago
Solve 4 over x minus 4 equals the quantity of x over x minus 4, minus four thirds for x and determine if the solution is extrane
Vinil7 [7]
I'm thinking this is what the problem looks like: \frac{4}{x-4}= \frac{x}{x-4}- \frac{4}{3}.  The first thing to do is to move the \frac{x}{x-4} over to the other side because it has a common denominator with the other side.  Doing that and at the same time combining them over their common denominator looks like this: \frac{4-x}{x-4}= -\frac{4}{3}.  The best way to solve for x now is to cross-multiply to get 3(4-x)=-4(x-4).  Distributing through the parenthesis is 12 - 3x = -4x + 16.  Solving for x gives us x = 4.  Of course when we sub a 4 back in for x we get real problems, don't we?  Dividing by zero breaks every rule in math that there ever was! So, yes, the solution is extraneous.
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3 years ago
the sum of two numbers is 67 if three times the smaller number is subtracted by the larger the result is 7, find two numbers
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Um I think it's 3x7x4=81 or like this 40+20+7=67.
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3 years ago
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