Consider the sets q[/2), z[v2] and r[72] = {a +672 a, b e r} with the operations of addition and multiplication. (a) which of these sets (if any) are not rings? explain why they are not. (b) which of these sets (if any) are not fields? explain why they are not. (c) which of these sets (if any) are not integral domains? explain why they are not. page 2

both equations and proportions are better.

dc=6 square root of 3 and ac is 12 square root 3

c and d

step-by-step explanation:

square root of 3/2 = 18/c

cross multiply to get 18*2=√3*c

36/√3 * √3/√3 = c

c= 36*√3/3

c=12√3

answer: h

step-by-step explanation:

54 km / hours

step-by-step explanation:

we need to convert seconds to hours

60 seconds = 1 minutes

60 minutes = 1hour

15 m         60 second   60 minutes

  * *         = 54000 meters/ hour

second     1 minute             1 hour

now we need to convert meters to km

1000 m = 1 km

54000 m       1 km

*   = 54 km / hours

hour               1000m