tflorival27632 tflorival27632
  • 16-07-2022
  • Mathematics
contestada

I need help I’ll give branliest

I need help Ill give branliest class=

Respuesta :

isgluch
isgluch isgluch
  • 16-07-2022

Answer:

A

Step-by-step explanation:

Answer Link
poetayto
poetayto poetayto
  • 16-07-2022

Answer:

B

Step-by-step explanation:

we know the thickness is x, so the sides are 3+2x and 4+2x

then we use foil:

(3+2x)(4+2x)=12+6x+8x+4x^2=4x^2+14x+12

we know the area is 15

4x^2+14x+12=15

4x^2+14x-3=0

So it is B

Answer Link

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