Question

7. Write the following to the number of significant figures written in brackets:
brackets:
a) 0.954( 1s.f.)
b) b) 0.00973 ( 2 s.f.)
c) c) 2.5728 ( 3 s.f.)

Answer 1

Hey There!!!


Significant Figures are an important concept in Practical Applications. They give you an idea of how precise a measurement is. The more number of significant figures, the better and more precise is the measurement.

There are some Rules for Significant Figures

-> All non-zero digits are significant

-> Any zeros between two significant digits are significant

-> A zero, trailing a significant figure after decimal are significant


When reducing to a given number of signifcant figures, we round off as required.





Here, 

a) 0.954 [1 SF]
-> 1


b) 0.00973 [2 SF]
-> 0.0097


c) 2.5728 [3 SF]
-> 2.57


Hope it helps
Purva
Brainly Community

Answer 2

Answer:

Rules for Significant Figures :-

-> All non-zero digits are significant

-> Any zeros between two significant digits are significant

-> A zero, trailing a significant figure after decimal are significant

When reducing to a given number of signifcant figures, we round off as required.

Here, Your answer is....

a) 0.954 [1 SF]

-> 1

b) 0.00973 [2 SF]

-> 0.0097

c) 2.5728 [3 SF]

-> 2.57