Question

write the number in scientific notation.
0.000000000855

Explanation:

Step1: Move decimal to create 1-10 number

Move decimal 10 places right to get $8.55$

Step2: Define power of 10

Since we moved right 10 times, use $10^{-10}$

Step3: Combine into scientific notation

Multiply the two parts: $8.55 \times 10^{-10}$

Answer:

$8.55 \times 10^{-10}$