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julsineya [31]
3 years ago
9

If the sales tax is 7% and the purchase price is $161, what is the amount of tax?

Mathematics
1 answer:
AlekseyPX3 years ago
6 0
7 \% \ from \ 161 \ = \ \frac{7}{100} * 161 = \frac{ 1127}{100} = 11,27\ is \ amount \ of \ tax \
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Step-by-step explanation:

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Svetach [21]

Answer:

The values in the table, taking into account the quadratic equation, are:

  • x     -3     -2     -1     0     1     2     3     4
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Step-by-step explanation:

To obtain the values of the table, you must use the quadratic equation given:

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Now, you must replace the x with the one that is above the value you want to find, in the first case, we're gonna replace the value x with -3:

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  • y = (-3)^2 - 2*(-3) + 1
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When x is -1

  • y = x^2 - 2x + 1
  • y = (-1)^2 - 2*(-1) + 1
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When x is 1

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When x is 3:

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At last, the graph must be as the attached picture I give you, but <u><em>remember in y-axis you must use 1 cm as unit and in the x-axis you must use 2 cm as unit, in this form, the graph will not be so elongated as the picture I attach, It would be wider</em></u>.

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The one you have highlighted is correct
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Solve for x: -1/2(-4+2x) = -6 - 4x
antiseptic1488 [7]
-\dfrac{1}{2}(-4+2x)=-6-4x\ \ \ \ \ |multiply\ both\ sides\ by\ (-2)\\\\-4+2x=12+8x\ \ \ \ |add\ 4\ to\ both\ sides\\\\2x=16+8x\ \ \ \ \ |subtract\ 8x\ from\ both\ sides\\\\-6x=16\ \ \ \ \ |divide\ both\ sides\ by\ (-6)\\\\x=-\dfrac{16}{6}\\\\x=-\dfrac{8}{3}\\\\\boxed{x=-2\frac{2}{3}}
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