Respuesta :

r3t40

Well, if a = -1 and b = 4 then when we plug in the values of a and b into the expression we get:

[tex]13(-1)^{-3}\cdot4^{-1}[/tex].

Then simplify it:

[tex]-13\cdot1/4=-\frac{13}{4}[/tex].

The answer is A.

Hope this helps.

igoroleshko156

Step-by-step explanation:

Step 1:  Substitute -1 for a and 4 for b

[tex]13 * (-1)^-^3 * (4)^-^1[/tex]

[tex]13 * (-1) * \frac{1}{4}[/tex]

[tex]-\frac{13}{4}[/tex]

Answer:  Option A, [tex]-\frac{13}{4}[/tex]