Respuesta :

CHERLYNnotCHERRY

Answer:

The answer is B

Step-by-step explanation:

You can multiply it using Indices formula, a^m × a^n = a^(m+n) :

(-4y)(-9y⁹)

= (-4×-9)(y×y⁹)

= 36y^(1+9)

= 36y^10

TheBlueFox

Explanation: To simplify this problem, we can first multiply our coefficients hut we must add the exponents on the like bases.

This idea is called the product rule.

So we have -4 · -9 which is 36.

Now add the exponents.

Think of the [tex]y[/tex] as [tex]y^1[/tex].

So we add our exponents to get [tex]y^{10}[/tex].

So our answer is [tex]36 y^{10}[/tex].

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