Answer:
Explanation:
To round 53.0065 to 3 significant figures, we need to determine the first three most significant digits.
Starting from the left, the first three digits are 5, 3, and 0. The digit following these three digits is 0.
If the digit following the third significant digit is less than 5, we keep the third digit as it is. If the digit following the third significant digit is 5 or greater, we increase the value of the third digit by 1.
In this case, the digit following the third significant digit (0) is 6, which is greater than 5. Therefore, we increase the value of the third digit (0) by 1.
Thus, rounding 53.0065 to 3 significant figures gives us 53.0.