x9
5/x4
9.999 x 108 = 999,900,000
x^y * x^z = x^(y+z) Therefore x^9 * x^8 = x^17
3.2 x 10^8 = 320,000,000
The value of 5.7 x 108 is 570,000,000
1.3 x 108 = 130,000,000
6.205 x 10^8 is equal to 620,500,000.
The value of 5.7 x 10 to the 8th power is 570,000,000
X to the fourth power is... X times X times X times X
It is already in scientific notation as 4.9*10^8 and it is equivalent to 490,000,000
x times x to the first power is x to the second power
x times x times x times x