Answer:
2 hour
Step-by-step explanation:
Answer: 
Step-by-step explanation:
Using the Pythagorean theorem,

Z - 9 = 27 |add 9 to both sides
z = 36
Answer:
(1,1)? Sorry im not completely sure
Answer:
10 < x < 20
Step-by-step explanation:
the sum of any two sides of a triangle has to be greater than the 3rd side, so the maximum value of the third side in this instance is 19.9999999 because 10 + 10 = 20