How do you write 3.9 × 101 in standard form?

1 answer

To write \( 3.9 \times 10^1 \) in standard form, you need to perform the multiplication.

Calculating \( 3.9 \times 10^1 \):

  1. \( 10^1 = 10 \)
  2. Multiply \( 3.9 \) by \( 10 \):

\[ 3.9 \times 10 = 39 \]

So, the standard form of \( 3.9 \times 10^1 \) is \( 39 \).