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Find the value of (0.006)3 + (0.004)3 in standard form

Mathematics
JAMB 1997
Find the value of (0.006)3 + (0.004)3 in standard form
  • A. 2.8 x 10-9
  • B. 2.8 x 10-7
  • C. 2.8 x 10-8
  • D. 2.8 x 10-6
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Correct Answer: Option B
Explanation
(0.006)3 + (0.004)3 = 2.16 x 10-7

(2.16 + 0.64) x 10-7

= 2.8 x 10-7
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WAEC offline past questions - with all answers and explanations in one app - Download for free
WAEC Past Questions, Objective & Theory, Study 100% offline, Download app now - 24709
WAEC May/June 2024 - Practice for Objective & Theory - From 1988 till date, download app now - 99995
Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts
WAEC May/June 2024 - Practice for Objective & Theory - From 1988 till date, download app now - 99995
WAEC offline past questions - with all answers and explanations in one app - Download for free
WAEC Past Questions, Objective & Theory, Study 100% offline, Download app now - 24709
Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts