It isnt
10 power of 4
10⁻⁴ = 1/10⁴= 1/10000 Then 8.73 x 10⁻⁴= 8.73/10000 = 0.000873
10^4=10000 10000*5.2= 52,000
You add exponents, so it is 10 to the 4th power, which is 10000
-10x-10 = 100 100 x -10 = -1000 -1000x-10= 10000 Answer is 10,000.
104 = 10000
10000
10000
10,000 = 104
104 =10000 [one with 4 zeros]
10x10x10x10=10,000