Answer:
-7
Step-by-step explanation:
replace x by 3
-5^3+8
-15+8
=-7
48
d^2 = 30^2 + 12^2
e^2 = d^2 + 8^2
e^2 = 30^2 + 12^2 + 8^2
e = √(30^2 + 12^2 + 8^2) = 33.3 ft
its bigger yah bigger eheh
