Question

3. Give the following numbers correct to the number of significant figures indicated in the brackets:(a) 475.831 07 (4 s.f.) (b) 59.07203 (3 s.f.)(c) 0.0000683 (2 s.f.)(d) 0.049 8502 (1 s.f.)

Answer 1

Let's correct the numbers to the number of significant figures indicated in the brackets:

In getting the correct numbers based on the significant figures required, we will round off the number to the required significant number needed.

a.) 475.83107 (4 s.f.) = Rounding off to the tenths place = 475.8

b.) 59.07203 (3 s.f.) = Rounding of to the tenths place = 59.1

c.) 0.0000683 (2 s.f.) = Rounding off to the millionths place = 0.000068

d.) 0.0498502 (1 s.f.) = Rounding off to the hundredths place = 0.05