Question

question 26 not yet answered marked out of 1.00 flag question identify how many significant figures there are in the following number: 1.409 select one: a. 2 b. 3 c. 4 d. infinite question 27 not yet answered marked out of 1.00 flag question identify how many significant figures there are in the following number: 2.000km select one: a. 2 b. 3 c. 4 d. infinite question 28 not yet answered marked out of 1.00 flag question identify how many significant figures there are in the following number: 3404 pens select one: a. 2 b. 3 c. 4 d. infinite

Explanation:

Step1: Analyze 1.40g sig figs

Non-zero digits (1,4) are significant; trailing zero after decimal is significant. Total: 3.

Step2: Analyze 2.000km sig figs

Non-zero digit (2) is significant; trailing zeros after decimal are significant. Total: 4.

Step3: Analyze 3404 pens sig figs

All non-zero digits (3,4,4) and trapped zero (0) are significant. Total: 4.

Answer:

Question 26: b. 3
Question 27: c. 4
Question 28: c. 4