Answer with Step-by-step explanation:
Since we have given that
a + b = c
and a|c
i.e. a divides c.
We need to prove that a|b.
⇒ a = mb for some integer m
Since a|c,
So, mathematically, it is expressed as
c= ka
Now, we put the above value in a + b = c.
So, it becomes,

a=mb, here, m = k-1
Hence, proved.
Answer:
Figure 2 and figure 4
Yes I agree with Tyler
A
C
D
Step-by-step explanation:
Figures 2 and 4 are not slanted which changes the original form, unlike the others.
I agree with Tyler because the size is not only smaller but it says that it was scaled by 2 more centimeters than the original figure.
I believe its the others because the other one is scaled upwards unlike the rest.
Answer:
The sequence is not geometric or arithmetic because there is no common difference or common ratio between each term.
Not a Geometric or Arithmetic Sequence
Answer:
19 or 21.
Step-by-step explanation:
I swear.
5 + 5 = 10
10 + 5 = 15
15 + 4 = 19
________________
9 + 9 = 18
18 + 10 = 28
28 - 5 = 23
There are two nines so
23 - 2 = 21