-5^7 = -78125
Five to the negative 7th power equals 0.0000128
negative 0.0016
5 to the 7th power
It is equivalent to 1 over 5 to the power of 5, or 1 over 3125.
Negative 5 to the second power would be -5 times -5 which would be 25.
5.3965953e-16
It is -1/5
Five to the negative third power = 0.008
Seven to the negative 5th power is 0.00005949901
If you mean 5 to the power of -1 then it is 1/5
That is the definition of negative powers.
3 times 10 to the 8th power divided by 7 times 10 to the negative 7th power equates to: 4.28571428571