What is the value of k in the product of powers below?
0
1
-3
-1

The answer is: [tex] k=-1 [/tex]
The explanation is shown below:
1. By the exponents properties, when you have equal bases, you must sum the exponents of all the bases.
2. Based on this, let's write only the exponents and let's solve for [tex] k [/tex] to calculate its value:
[tex] -3+1+k=-3\\ k=-3+3-1\\ k=-1 [/tex]
Therefore, the answer is [tex] k=-1 [/tex]
[tex] 10^{-3} \cdot 10 \cdot 10^k = 10^{-3} [/tex]
[tex]10^{-3 + 1 + k} = 10^{-3}[/tex]
Taking logs,
[tex]-3 + 1 + k = -3[/tex]
[tex]k = -1[/tex]
Last choice