Answer:
5.3
Step-by-step explanation:
To find the mean you must add up all the numbers in the set then divide them by the number of numbers in said set.
Answer: The Solution to inequality is _______ (x < -4). A graph of the solution should have______ (A filled-in circle at -4) and should be shaded to the ____ (left)
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Answer:
It is true.
Step-by-step explanation:
congruent polygons have the exact same size and are a perfect match because all corresponding parts are congruent (equal). ... This means that if two polygons are similar, then their corresponding angles are congruent
Answer:CD = x = 4 units
Explanation:We are given that the two triangles are similar. This means that we can set the similarity proportionality as follows:

W e have:
BC = 20 - x
AC = 20
CD = x
CE = 5
Substitute in the above proportionality and solve for x as follows:

4x = 20 - x
5x = 20
x = 4
Based on he above:
CD = 4 units
BC = 20 - x = 20 - 4 = 16 units
Hope this helps :)