The speed of light is now defined to be 2.99792458 * 108 m/s. express the speed of light to (a) three significant figures, (b) five significant figures, and (c) seven significant figures.

Step-by-step explanation:

Rules to be kept in mind while rounding off:

The speed of light is now defined to be : c

c =

a) In three significant figures:

c =

b) In five significant figures:

c =

c) In seven significant figures:

c =

answer: h=5.6 i don't really know how to put into words, so i though i would let you do that. i hope i was able to some

step-by-step explanation:

18 = 6(h)+1/2

18 = 6h+1/2

18-1 = 6h/2

17 = 3h

17/3 = h

h = 5.6