Answer:
6 feet
Step-by-step explanation:
Volume of a rectangular prism = L × W × H
15 feet × 8 feet × H = 720 feet ³
120H = 720
H = 720 ÷ 120
H = 6 feet
Answer:
A=24cm²
Step-by-step explanation:
Area=1/2(product of the diagonals)
A=1/2(6×8)
A=1/2(48)
divide by 2
A=24cm²
The height of an oak tree (which depends on the age of the tree) is 100
Answer:
Step-by-step explanation:
y=-1/2(x+10)^2+14
2y=-(x+10)^2+28
(x+10)^2=28-2y
L.H.S. is positive.
so 28-2y≥0
28≥2y
or 2y≤28
or y≤ 14
Range is (-∞,14]
