Answer:
9.01 * 10^{-5}
Explanation:
Tip: If you come across numbers like 0.0000901 then the number of the exponent is going to be the sum of the number of zero's plus one, then make the sum negative. Never count any zero that is past ( to the right side of ) a number that is not zero.
Example: 0.0000901
.0000 there are four zero's.
0.0000901 This zero doesn't count.
1 + 4 = 5 We now add 1 to the 4 that we have.
-5 Now make the sum that we got a negative.
-5 is going to be the exponent for 10.