Question

Round off 0.07284 to four, three and two significant digits.

Answer 1

Answer:

Round 0.07284 to four, three, and two significant digits:

To round 0.07284 to four significant digits, I start with the first significant digit, which is the 7. (The zero between the decimal point and the 7 is not significant, as it serves only to "place" the 7 into the hundreds place.

Answer 2

Below are given four, three and two significant figures.

Explanation:

To round off it 0.07284 to four significant figures. Let's start with the first significant figure which is 7.

Four significant figures:

Zero "0" is present between decimal point and 7 which is not significant therefore there are only four significant figures.

Now moving on to the next digit which is 8 and is followed by 4 which is less than 5 therefore it can be round off as 0.07284

Three significant figures:

Now the next is 2 which is followed by 8. As 8 is more than 5 therefore it can be round off as 0.0728

Two significant figures:

Now the next is 3 which is followed by 2 as 2 is less than 3 therefore it can be round off as 0.073