Question

What is this question??​

Answer 1

5.1 x 10^-1

Explanation:

Scientific notation of a number less than 1 but greater than 0 involves a negative exponent.

Since the decimal is moving left one place (from 5.1 to 0.51), the exponent will only be 1.

Answer 2

5.1* 10-¹

Hope it helps thank you