Calculate and correct to two significant figures, the percentage error in approximating 0.375 to 0.4
Answer Details
To calculate the percentage error, we first need to find the absolute error, which is the difference between the actual value and the approximate value. In this case, the actual value is 0.375, and the approximate value is 0.4.
Absolute error = |actual value - approximate value|
Absolute error = |0.375 - 0.4|
Absolute error = 0.025
To find the percentage error, we divide the absolute error by the actual value and multiply by 100.
Percentage error = (absolute error / actual value) x 100
Percentage error = (0.025 / 0.375) x 100
Percentage error = 6.67
Rounding to two significant figures, the percentage error in approximating 0.375 to 0.4 is 6.7%. Therefore, the correct answer is option D.