Final answer:
The quotient of 8.4 × 10^9 and 8.4 × 10^2 is 1 × 10^7 when expressed in scientific notation.
Step-by-step explanation:
The question asks to find the quotient of 8.4 × 10^9 and 8.4 × 10^2 expressed in scientific notation. To solve this, divide the coefficients (8.4/8.4) and subtract the exponents of 10 (9 - 2) because when you divide powers with the same base, you subtract the exponents. Since 8.4 divided by 8.4 equals 1 and 10^9 divided by 10^2 is 10^(9-2) or 10^7, the quotient in scientific notation is 1 × 10^7.