Answer:
B
Step-by-step explanation:
Answer:
hope
Step-by-step explanation:
hope
X2 + 5x – 104 = 0
is written in standard form (equal to 0)
Step-by-step explanation:
can't really use the Pythagorean because you don't know this is a right triangle.
use the fact that they are similar
so
3/6 = x/12 where x is FE
cross multiply
6x = 36 therefore FE = 6
then 6/12 = y/9 where y is FD
cross multiply
12y = 54 = 54/12 therefore FD = 4.5
I know the number ypu have to fill in would be 15 I believe that is the commutative or associative property or something with addition
