Question 251875
(9×107)(9×108) is closest to which of the following?
A. 1016
B. 1017
C. 1056
D. 1057
E. 1058
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Do you mean 9*10^7 times 9*10^8 ?
Using 9E7 and 9E8 is clearer, and easier to type.
9E7*9E8 = 81E15
= 8.1E16
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That's closest to B, 10^17, or 1E17.