Answer:
the atomic number
Step-by-step explanation:
the atomic number is the number of protons in the shell
Answer:
3-9=6-1=5ad 19 and you got f =519
Step-by-step explanation:
i think. when the 3 has thos things on it that means you have to do that first and you are figiring owt what f = that is y the f is ther and sins ther is no ecwajen arond the 1 and 9 i think it means ad that
A.) Yes, by AA criterion.
Triangle ABE have these angles:
∠ABE = 45° ; ∠EAB = 63° ; missing ∠ is 72°
Triangle MNP have these angles:
∠MNP = 72° ; ∠NMP = 63°; missing ∠ is 45°
AA criterion is "angle,angle" criterion. It means that the two triangles have at least two of their angles equal. Since a triangle have a total of 180°, when two of their angles are equal, the 3rd angle is also equal.
As you can see, both triangles have 45°, 63°, and 72° measurement of angles. Thus, they are similar.
Answer: 7
Step-by-step explanation:
The merge of two sets is a new set that has all the elements that are at least in one of the sets w/out repeating elements. The intersection of two sets is a new set that has the elements in both of the sets because {1, 2, 3}∩{2, 3, 4}={2, 3}. In this case the only common element is number 7 so: {4, 7, 10, 13, 17} ∩ {2, 5, 7, 9} = {7}.
