Answer:
73.131
Step-by-step explanation:
T=
s(s−a)(s−b)(s−c)
T=
20.9(20.9−15)(20.9−17)(20.9−9.81)
T=
5348.14
=73.13
Answer:

Step-by-step explanation:
Given
Parallel lines A and B
Required
Find x
For A and B to be parallel, then 5x + 9 and 6x - 2 are alternate interior angles
And alternate interior angles are always equal
This means that

Collect like terms


Multiply both sides by -1


Answer:
Its a Translation because all they did with it was move it. It never changed size or shape.
Step-by-step explanation:
N*x*a=n+x+a
<span>If n=1, x=2 and a=3.</span>