Question

for the following numbers determine the total number of significant figures. example, 112 has 3 significant figures, 0.012 has 2 significant figures, 1,000 has 1 significant figure, 1,000.0 has 5 significant figures. 201.5 1 point your answer 0.000110 1 point your answer 1,200,000 1 point your answer 500 1 point

Explanation:

Step1: Identify significant - figure rules

Non - zero digits are always significant. Zeros between non - zero digits are significant. Leading zeros (zeros before non - zero digits) are not significant. Trailing zeros in a number without a decimal point may or may not be significant.

Step2: Analyze 201.5

The digits 2, 0, 1, and 5 are all significant. So the number of significant figures is 4.

Step3: Analyze 0.000110

The leading zeros are not significant. The non - zero digits 1, 1 and the trailing zero are significant. So the number of significant figures is 3.

Step4: Analyze 1,200,000

Without a decimal point, the trailing zeros are not considered significant in the default case. So the number of significant figures is 2.

Step5: Analyze 500

Without a decimal point, the trailing zeros are not considered significant in the default case. So the number of significant figures is 1.

Answer:

201.5: 4
0.000110: 3
1,200,000: 2
500: 1