(m+11n)^2
=(m+11n)(m+11n)
=m^2+11mn+11mn+121n^2
=m^2+22mn×121n^2
For Example;
use FOIL: (a+b)(a+b)
First. a^2
Outside. ab
Inside. ab
Last. b^2
To 55% of 150 we do:
0.55*140=77
55% of 140 77
Answer:
9
Step-by-step explanation:
Multiplying the lengths of the intersecting pieces of the chords must be equal
3*6 = 2*x
18 = 2x
Divide each side by 2
18/2 = 2x/2
9=x
The second one because the others are less than 5
