4
-∛64 means that x³= 64
4 x 4 x 4= 64
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 :)
Answer:
x is less than or equal to 7
Step-by-step explanation:
D= 65 degrees.
Because straight line adds up to 180
So 180-115= 65