NABTEB Mathematics 2024 Objective — Question 1

Question 1 of 50 from the National Business and Technical Examinations Board (NABTEB) Mathematics 2024 Objective paper, with the correct answer and a full explanation.

Multiply 3.4 × 10⁻⁵ by 7.1 × 10⁸ and leave the answer in standard form.

A. A. 2.414 × 10²
B. B. 2.414 × 10³
C. C. 2.414 × 10⁴Correct
D. D. 2.414 × 10⁵

Explanation

3.4×7.1=24.14. Then 3.4×10⁻⁵×7.1×10⁸=24.14×10⁻⁵⁺⁸=24.14×10³=2.414×10¹×10³=2.414×10⁴.

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