So is it the commutative property of multiplication?5x+7x=12x

So is it the commutative property of multiplication?

5x+7x=12x

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  1. the answer is b.

    step-by-step explanation:

    by the trigonometric ratio tangent, tangent equals opposite divided by adjacent.

    therefore, tan(50) equals ac/3

    multiply each side by 3 to get: ac=3tan(50)

    the answer is b.

  2. Step-by-step explanation:

    The Commutative Properties of Addition and Multiplication. You may ... Here, the same problem is worked by grouping 5 and 6 first, 5 + 6 = 11. 4 + 5 + 6 = 4 + 11 ...

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