Answer:
Step-by-step explanation:
a) The formula for determining the volume of a rectangular prism is expressed as
Volume = length × width × height
From the information given,
height = h units
Width = 9 - h units
Length = 2h units
Therefore,
Volume = h × 2h × (9 - h)
Volume = 2h²(9 - h)
Volume = 18h²- 2h³
b) if the height of the rectangular prism is 6, the volume would be
Volume = 18 × 6² - 2 × 6³
Volume = 648 - 432
Volume = 216 units
