147.658 to two significant figures is 150.
3.2*1.05=3.36=3.4(sf) With two significant figures
42 has two significant figures.
687 to two significant figures is 690.
23.43 rounded to two significant figures is 23.
0.081778 to two significant figures is 0.082
147.658 to two significant figures is 150.
Yes, that is correct.
Yes, that is correct.
It is: 62 kg
3.2*1.05=3.36=3.4(sf) With two significant figures
The correct answer is 2. The three zeros between the decimal point and the 1 are place holders but they are NOT significant digits. See, for example, the Wikipedia link.
There are 4 significant figures in 0.0032. Seems to be only 2 significant figures in this number.
all the zeros are significant. there are four significant figures.
There are two significant figures which are the two 2s.
The product of 24m and 3.26m is 78.24m². Since both values have two significant figures, the answer should be rounded to two significant figures as well, giving 78m².
350, as the 5.128 rounds up