High School

Which values have exactly three significant figures? Check all that apply.

- 0.0230 grams
- 0.035 ounces
- 0.804 inches
- 3.150 liters
- 140 feet
- 509 kilometers

Answer :

Answer: The values that have exactly three significant figures are,

0.0230, 0.804, 140 and 509

Step-by-step explanation:

Significant numbers or significant number is a number that is used to express the value of the number.

In 0.0230 grams, there are three significant figures,

In 0.035 ounces, there are 2 significant figures,

In 0.804 inches, there are 3 significant figures,

In 3.150 liters, there are 4 significant figures,

In 140 feet, there are 3 significant figures,

in 509 km, there are 3 significant figures.

0.0230, The leading zeros are insignificant
0.804, same story here
509, only 3 numbers, all significant

Hope this helps! :)