vladsanda19 vladsanda19
  • 12-05-2020
  • Mathematics
contestada

Area of a Rectangular prism is 48ft2 and it’s width is x ft and it’s length is 3 ft more than the width. Find the height of the rectangular prism.

Respuesta :

amna04352
amna04352 amna04352
  • 12-05-2020

Answer:

h = (24 - 3x - x²)/(2x + 3)

Step-by-step explanation:

Surface area:

2(x × (x + 3)) + 2(x)h + 2(x + 3)h

2(x² + 3x) + 2xh + 2(x + 3)h = 48

x² + 3x + xh + xh + 3h = 24

h(2x + 3) = 24 - x² - 3x

h = (24 - 3x - x²)/(2x + 3)

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