'Commutative' means you can work it in the other direction without changing it.
But 1/2 is not the same number as 2/1 . So I guess division is NOT commutative.

3 0

4 years ago

(-9x - 4) - (4x2 + 2x - 7)

yaroslaw [1]

Answer:

I assume you meant 4x^2

So the answer in simplified form is -4x^2-11x+3

6 0

3 years ago

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The following values of (x) and f(y) are given. Find the best value of (dy/dx) at

velikii [3]

Answer:

dy/dx at x=6 is 0.334

Step-by-step explanation:

The center difference method requires that the values of the function are given in equal intervals which is the case, and allows one to find the value for x = 6 using those of the function for x = 5.5 and for x = 6.5 as follows:

$\frac{dy}{dx} =\frac{3.7436-3.4096}{6.5-5.5} =0.334$

4 0

3 years ago