A. .3423e2: This means 0.3423 times 10 raised to the power of 2 (which is 100). So, it's 0.3423 * 100 = 34.23, which is the same as our number.
B. 3423e-2: This means 3423 times 10 raised to the power of -2 (which is 0.01). So, it's 3423 * 0.01 = 34.23, which is also the same as our number.
C. .3423e-2: This means 0.3423 times 10 raised to the power of -2 (which is 0.01). So, it's 0.3423 * 0.01 = 0.003423, which is not the same as our number.
D. 3423e2: This means 3423 times 10 raised to the power of 2 (which is 100). So, it's 3423 * 100 = 342300, which is not the same as our number.
So, the options A and B are the ones that reflect the value 34.23. They show the number in a simpler way using scientific notation.
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