Question

evaluate the expression.
$(1.2 \times 10^3) \times (7 \times 10^{-1})$
$? \times 10^{\square}$

Explanation:

Step1: Group coefficients and powers

$(1.2 \times 7) \times (10^3 \times 10^{-1})$

Step2: Multiply the coefficients

$1.2 \times 7 = 8.4$

Step3: Multiply the powers of 10

$10^{3 + (-1)} = 10^{2}$

Step4: Combine the results

$8.4 \times 10^{2}$

Answer:

$8.4 \times 10^{2}$