A
Mark brainliest please
Hope this helps you
Answer:
not 100% but I think it's Step 1
Answer:
Step-by-step explanation:
Let x be the distance from the foot of the ladder to the base of the building.
We have a right triangle, so we can use Pythagoras' Theorem.
Conjugate of 9-5i is 9+5i
product of those two: (9-5i)*(9+5i) =