Evaluate (wx)-4 if w = -3 and x = -4
is the answer: 1 over 144?
Thanks in advance!
(wx)-4 if w = -3 and x = -4
= ((-3)(-4)) - 4
= 12 - 4
= 8
that isnt an option for my pre-test..
the answers to choose from are
a. 1 over 12
b. 12-4 (the -4 is an exponent)
c. 1 over 20,736
d. 1/144
Recheck your problem.
As your problem is stated, Reiny is correct.
AHH, looking at your choices, I will conclude you meant
(wx)^-4
which is
1/(wx)^4
= 1/(12^4)
= 1/20736
To evaluate the expression (wx)-4, you need to substitute the given values of w = -3 and x = -4 into the expression and perform the necessary calculations.
Let's substitute the values:
(wx)-4 = (-3) (-4)-4
Now, perform the calculations within the parentheses:
(-3) (-4) = 12
Now, substitute back into the expression:
(12)-4
To simplify further, perform the exponent operation:
(12)-4 = 1 / (12^4) = 1 / 20736
So, the answer to the expression (wx)-4, with w = -3 and x = -4, is indeed 1 / 20736 or approximately 0.000048.
Therefore, the initial answer you provided, 1 / 144, is incorrect. The correct answer is 1 / 20736.