Answer:
Is this a question or is this spamming numbers ?
Use the pythagoream theorem to check. a^2+b^2=c^2
a=15 b=36 c= 39
225+1296=1521
The equation is true so it is a right triangle.
Answer:
Step-by-step explanation:
Incorrect. She forgot to change the sign while distributing.
5x - 3(4-x) = 5x - 12 + 3x = 8x - 12
We can simplfiy to be 
.
We know that
is 10 and
is i, so the answer is 10i, or D.