Entry Exam Category: High School Equivalency Exams
Course: HiSET
Exam: HiSET Math Practice Test
Practice Question
Which of the following expressions is equivalent to: 1200 × (5 × 10⁷)?
Answer Choices
- A: 12×10¹⁰
- B: 6.0×10¹⁰
- C: 6.0×10¹¹
- D: 7.2×10¹³
- E: 9.4×10¹⁴
Correct Answer: B
Rationale: Compute: 1200 × 5 × 10⁷ = 6000 × 10⁷ = 6.0 × 10³ × 10⁷ = 6.0 × 10¹⁰. Options: 12×10¹⁰, 6.0×10¹¹, 7.2×10¹³, 9.4×10¹⁴ incorrect; 6.0×10¹⁰ correct.