Answer:
The identity element of Q is 0, and 0 ∈ Z. Finally, if n ∈ Z, its additive inverse in Q is −n. But −n is also an integer, so Z is closed under taking inverses. Therefore,Z is a subgroup of Q.
The answer is 36 & 18 because i took the mean and figured out the what the difference had to be for it to equal 18 and used the same number to get to 54
Answer:
B) Yes- The scale factor is 2 and all coordinates increase by 2
Step-by-step explanation:
4/2 = 2
8/4 = 2
Answer:
slope=3
y-intercept=-1
Step-by-step explanation: