Write 850,000,000,000 in scientific notation.  Choose the correct choice from the following answers.
A) 8.5 * 10^11	B) 800.900 * 10^11	C) 8.900 * 10^11	D) 80.9000* 10^11	E) 08.900 * 10^11
a * 10 n , where a is a real number such that 1 * |a| &lt; 10 and n is an integer.   850,000,000,000 = 8.5* 100,000,000,000 = 8.% * 10 11**   correct answer 8.5 * 10^11
<result>A</result>
Write 850,000,000,000 in scientific notation.