Question

Which values have exactly three significant figures? Select two options.

0.0230 grams
0.035 ounces
0.804 inches
3.150 liters
140 feet

Answer 1

Its only 0.0230

and 0.804

not 140 because there is no deci so the trailing 0 doesnt count

Explanation:

Answer 2

0.0230 grams

0.804 inches

140 feet

Explanation:

The significant numbers are rules for precision.

Some rule of significant numbers are:

• Zeroes in the right are not significant.
• Non-zero numbers are significant.
• Zeroes to the left of the numbers are significant.
• Zeroes between two non-zero numbers are significant.

Thus,

0.0230 grams has 3 significant figures.

0.035 ounces has 2 significant figures.

0.804 grams has 3 significant figures.

3.150 grams has 4 significant figures.

140 grams has 3 significant figures.