Answer:


Step-by-step explanation:
From the question we are told that:
Dimension of ABC
A=9
B=11
C=110
Dimension of FED
D=231
Generally the equation for the similar triangles is mathematically given by

Therefore solving for F



Therefore solving for E



Measure of 

Measure of 

Answer:
51
Step-by-step explanation:
big windows 48
small windows 12
broken windnows9
unbroken windows= 48+12-9= 51
unbroken 51 windows
Answer:
+65
Step-by-step explanation:
If you distribute negative with negative it gives you positive
Parenthasees
the first onewould evaluate to 4x²
the 2nd one would just be -2x²