Respuesta :

JonHenderson55
Yes; I can help.   The answer is:   4 * 10⁻¹⁰ .
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Explanation:
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  Given:  "Write:  "(8*10⁻⁵)(5*10⁻⁶)" in scientific notation.
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   →  (8*10⁻⁵)(5*10⁻⁶) = 8 * 10⁻⁵ * 5 * 10⁻⁶
                                  = 8 * 5 * 10⁻⁵ * 10⁻⁶ 
                                  = 40 * 10⁽⁻⁵⁾⁺⁽⁻⁶⁾ ;
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Note the following property of exponents:
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             →   xᵃ * xᵇ  = x⁽ᵃ⁺ᵇ⁾ ;
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                    So, we have:  
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             →   40 * 10⁽⁻⁵⁾⁺⁽⁻⁶⁾  =  40* 10⁻¹¹ ;
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                                          =  4 * 10⁻¹⁰ .
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