Question

The average person's head has about 100,000 strands of hair.

What is that in scientific notation?
A: 1 × 10^4

B: 1 × 10^5

C: 10^5

10 × 10^4

Answer 1

Answer: B
The answer is B because 100,000 has 5 zeros so you use the fifth power.

Answer 2

B: 1 × 10^5

Explanation:

B is correct and C is not becasue you have to have the number multiplied by 10 to a power because then you wouldn't know what number to use as the base. I hope this helps. :)