Respuesta :

8x10^5 = 800,000

times 800,000 by 0.5 (or just half it) would equal 400,000, which is translated to 4x10^5
JonHenderson55
The answer is:  " 4 * 10⁵ " .
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Explanation: 
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    →  0.5 * (8 * 10⁵) = 0.5 * 8 * 10⁵ ;
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    →  0.5 * 8 = (1/2) * 8 =  4 ;   
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→  We now have:  4 * 10⁵ ; which  is the most simplified value; that is, written in proper "scientific notation."
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The answer is:  " 4 * 10⁵ " .
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