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Which of the following values have 2 significant figures? Check all that apply.A. 45 B. 90C. 180D. 22.5

User V Nikoyan
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1 Answer

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To find the 2 significant figures:

A. 45

Since, there are two non zeros 4 and 5.

Therefore, this has 2 significant figures.

B. 90

Since, it has only one non zero digit 9.

Therefore, it has not 2 significant figures.

C. 180

Since, there are two non zeros 1 and 8.

Therefore, this has 2 significant figures.

D. 22.5

Since, there are three non zeros 2, 2 and 8.

Therefore, this has not 2 significant figures.

Hence, the correct options are A and C.

User Tomasr
by
8.1k points

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