Evaluate Using Scientific Notation (1.210^7)(410^-2)

$(1.2 \cdot 10^{7}) (4 \cdot 10^{- 2})$

Step 1

Multiply $1.2$ by $4$ .

$4.8 (10^{7} \cdot 10^{- 2})$

Step 2

Multiply $10^{7}$ by $10^{- 2}$ by adding the exponents.

Use the power rule $a^{m} a^{n} = a^{m + n}$ to combine exponents.

$4.8 \cdot 10^{7 - 2}$

Subtract $2$ from $7$ .

$4.8 \cdot 10^{5}$

Evaluate Using Scientific Notation (1.2*10^7)(4*10^-2)