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2 years ago

Which property of addition is shown below? If x = 1 + 2i and y = –1 – 2i, then x + y = 0

Mathematics

1 answer:

mel-nik [20]2 years ago

7 0

Answer:

Additive inverse property is satisfied in the given question

Explanation:

We have been given with two complex numbers x=1+2i and y= -1 -2i

we can clearly see that y is additive inverse of x

Since, additive inverse of the complex number is -(a+ib)

Where a and b are real numbers

Here in given numbers a=1 and b=2i

sum of number and its additive inverse is zero.

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3 years ago

tongue tied sauces inc finds that the revenue in dollars from the sale of x bottles of barbeque sauce is given by

charle [14.2K]

Answer:

The answert is "$0.007 / bottle".

Step-by-step explanation:

Please find the complete question in the attachment file.

$\to R(x) =7.5x^{0.7}$

The average income:

$\to A(x) = \frac{R(x)}{x} =7.5 x^{-0.3}$

The change rate on the average revenue:

$\to A'(x) =7.5(-0.3)x^{-1.3}$

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$\to =A'(81)\\\\\to -0.007 \ / \ bottle$

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2 years ago