Answer:
1.5
Step-by-step explanation:
Anything divided by 1 is itself
For this case we have to:
x: Represents the unknown number
y: Represents the exponent of base 10
So, considering a system of equations we have:

From the first equation we have:

Substituting in the second equation:

We choose the positive value:

So, the number is 0.4.
So:

Thus, the exponent is 5.
Answer:
Yara use 0.4 and
Answer:
31.40
Step-by-step explanation:
3.14 x 10
= 31.40
I'm very sorry if you get it wrong tell me
Answer:
5.4 * 10^10
Step-by-step explanation: