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Assuming that the measurement is to the nearest 0.01, the greatest possible error is 0.005.
0.5
If the numbers are rounded to the nearest 750, then 375 is the greatest possible error. Although you are not likely to have counted in 750s, it is quite possible that you counted in 50s (greatest error = 25). Or in tens (GE = 5) or in units (ones), when the greatest error is 0.5. The greatest possible error is half of the smallest unit of measurement.
.5cm/.5cm/.005g
The answer depends on the measurement precision. If the figure is correct to the last decimal, the greatest possible error is 0.0005 oz. However, the figure could refer to 11 oz + 32 drachms. If accurate to the nearest drachm, the greatest possible error is 0.00195 oz.
Assuming that the measurement is to the nearest 0.01, the greatest possible error is 0.005.
0.5
If the numbers are rounded to the nearest 750, then 375 is the greatest possible error. Although you are not likely to have counted in 750s, it is quite possible that you counted in 50s (greatest error = 25). Or in tens (GE = 5) or in units (ones), when the greatest error is 0.5. The greatest possible error is half of the smallest unit of measurement.
It is 0.5 mi.
If the number of significant digits is correct, this measurement should be between 4.6 and 4.8 and thus have a possible maximum error of 0.1.
1/2 ft = 6 inches.
.5cm/.5cm/.005g
The greatest possible error is 0.005
The answer depends on the measurement precision. If the figure is correct to the last decimal, the greatest possible error is 0.0005 oz. However, the figure could refer to 11 oz + 32 drachms. If accurate to the nearest drachm, the greatest possible error is 0.00195 oz.
The greatest possible error is 0.0005
If measured top the nearest centimetre then the answer is 0.5 cm.
Assuming the number is written to its greatest precision, it will be half of the place of the last digit. Since the 9 is in the tenths place, the greatest possible error is ±0.5*a tenth = ±0.05 metres.