Answer:

Step-by-step explanation:

here,
a = 1,
b = k
c = 9
now,


It depends on the question, but if the question is, how many is there....
It usually means to <u><em>add</em></u>
(What is the question anyway?)
Answer:
The bottom one to the right. It only reaches 1000 and no higher
Step-by-step explanation:
Answer:
s
Step-by-step explanation:
Answer:
angle of 90 degrees
Step-by-step explanation:
if the length satisfy the pythagorean theorem (a2+b2=c2) then it is a right traingle