An asteroid has a mean radius equal to 17 times that of Earth. Using Kepler's 3rd law find its period. T^2=a^3
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Ответ:
7.4
In order to round you look at the number after the one you want to round. If it is more than five it goes up one, if it is less than five it stays the same. Since the number after the four is also a four it stays the same.