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Answer:
x = 15
Step-by-step explanation:
Use pythagorean theorem: 

If x is 0 y is -5
if x is 2 y is 0
if x is 4 y is 5
hope that helps
Answer:

Step-by-step explanation:
#We use the base diagonal and the height diagonal to calculate the beam's height:

#The volume of the beam can then be calculated as:

Hence, the beam's volume is 
Answer is X > 18
1. Group all constants on the right side of the inequality
X/3 - 2 > 4
Add 2 to both sides: x/3 - 2 + 2 > 4+2
Simplify the arithmetic: X/3 > 4 + 2
Simplify the arithmetic: X/3 > 6