Convert 45,000,000 m to scientific notation using the correct form.
A45 × 10⁶ m
B4.5 × 10⁷ m
C4.5 × 10⁻⁷ m
D0.45 × 10⁸ m
Explanation
📌 Scientific notation requires 1 ≤ coefficient < 10. Move decimal 7 places left: 45,000,000 → 4.5 × 10⁷ m. Distractor A has coefficient outside the valid range (45); C flipped exponent sign; D violates coefficient range (0.45 < 1).