Answer:9a^2+18a-72
Step-by-step explanation:
9(a+1)^2-81
9(a+1)(a+1)-81
Open brackets
9(a^2+a+a+1)-81
9(a^2+2a+1)-81
9a^2+18a+9-81
9a^2+18a-72
Solid is if x is greater/less than or equal to (there isn’t a symbol for it) the line and the line would be dashed if x is < or > something
Answer:
x+115=180 x=65
90+65+y=180 y=25
Step-by-step explanation:
-17 17
----- -(-17) ----
8 ---- -8
8
Figure N is essentially the translation of figure E three blocks to right and one block down
<h3>What are the similarities of M and N?</h3>
1) The length of M and N can be described by two parallel lines spaced 3 blocks apart where the parallel line on E and F are separated by a parallel line that is two blocks long on the left and one block long on the right.
2) Both height of M and N can be described by two parallel lines spaced 2 blocks apart where the parallel The parallel line at the bottom is one block long, whereas the line at the top of E and F is three blocks long.
3) The interior of M an N can be described by parallel lines 2 blocks long in the horizontal portion and one block long in the vertical portion
The differences are
1) The difference between M and N is that the parallel lines used for the construction of E are all one block higher than that of F
2) The other difference is that all the lines used for the construction of the figure M are 3 blocks to the left of those used for the construction of N
Therefore Figure N is essentially the translation of figure E three blocks to right and one block down
To learn more about parallels lines refer to:
brainly.com/question/26961508
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