Zachary adds 26.45 g to 2.55 g. How many significant figures should his answer have?

2 answers:

8 0

<em><u>26.45 + 2.55 = 29 . . . but with correct sig figs . . . the answer is . . . 29.00 . . . i.e. [4] sig figs</u></em>

. . . why? . . . because even though 26.45 has [4] sig figs & 2.55 has [3] sig figs, the number of sig figs to the right of the decimal are the critical sig figs . . . and there are [2] sig figs to the right of the decimal, so the answer/result can also beas precise as having [2] sig figs to the right of the decimal as well.

siniylev [52]3 years ago

8 0

Answer:

C. 4

Step-by-step explanation:

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