Final answer:
To convert 43 years to seconds, multiply 43 by the number of seconds in a year, then express the answer in scientific notation. The result is 43 years equals 1.36 x 10^9 seconds.
Step-by-step explanation:
To convert 43 years to seconds and express the answer in scientific notation with two places after the decimal, we'll follow these steps:
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Calculations: 43 years * 365.25 days/year * 24 hours/day * 3600 seconds/hour
This equals to 1,356,205,120 seconds, which can be written as 1.36 × 109 seconds in scientific notation.
Therefore, 43 years is equivalent to 1.36 × 109 seconds when expressed in scientific notation with two places after the decimal.