Express 16.54 x 10\(^{-5}\) - 6.76 x 10\(^{-8}\) + 0.23 x 10\(^{-6}\) in standard form
MATHEMATICS
JAMB 2023
Express 16.54 x 10\(^{-5}\) - 6.76 x 10\(^{-8}\) + 0.23 x 10\(^{-6}\) in standard form
- A. 1.66 x 10\(^{-4}\)
- B. 1.66 x 10\(^{-5}\)
- C. 1.65 x 10\(^{-5}\)
- D. 1.65 x 10\(^{-4}\)
Correct Answer: A. 1.66 x 10\(^{-4}\)
Explanation
16.54 x 10\(^{-5}\) - 6.76 x 10\(^{-8}\) + 0.23 x 10\(^{-6}\)
⇒ 1.654 x 10\(^{-4}\) - 6.76 x 10\(^{-8}\) + 2.3 x 10\(^{-7}\)
⇒ 1.654 x 10\(^{-4}\) - 0.000676 x 10\(^{-4}\) + 0.0023 x 10\(^{-4}\)
⇒ (1.654 - 0.000676 + 0.0023) x 10\(^{-4}\)
∴ 1.655624 x 10\(^{-4}\) ? 1.66 x 10\(^{-4}\)
Post an Explanation Or Report an Error
If you see any wrong question or answer, please leave a comment below and we'll take a look. If you doubt why the selected answer is correct or need additional more details? Please drop a comment or Contact us directly. Your email address will not be published. Required fields are marked *