Answer:
the product of 210 * 2= 420
Step-by-step explanation:
210
<u>x 2</u>
420
Answer:
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Step-by-step explanation:
hahaahahah
According to my calculations the 30% of 570 is 171
10% of 570 is 57
times that by 3 and you get 171
It depends on the precision you want.
Considering the data you've given, if you want the result in cm, the numbers should be rounded to 9 and 3, thus giving a total of 12, with two significant numbers.
But taking into account the precision you've reported, looks like the decimals do matter, and in that case, the numbers should be rounded to 9.0 and 2.8, giving a total of 11.8, thus, three significative figures.