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vesna_86 [32]
3 years ago
10

The sales tax on a piece of furniture that cost $450 was $28.13.What was the percent sales tax.

Mathematics
1 answer:
Xelga [282]3 years ago
7 0
Alright the answer to this question is 6.25%.

I apologize for the confusion.
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<u>Step-by-step explanation:</u>

C = (1, 1)        D = (3, 3)          E = (2, -2)

270° rotation counterclockwise means (x, y) = (y, -x)

new C = (1, -1)        new D = (3, -3)         new E = (-2, -2)

3 units left means subtract 3 from the x-coordinate

newer C =( -2, -1)        newer D = (0, -3)      newer E = (-5, -2)

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Since the first option worked, there is no need to check the other options.

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inna [77]
Let g the inverse function of f.

The most important property of g and f being inverses of each other, is that 

g(f(x))=x,      also f(g(x))=x

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Thus, we have:

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