If the surface area of an open box of side x, y, and z centimeters is given by A= 2y(x+z) +xzFind ;a. A if...

      

If the surface area of an open box box of side x, y, and z centimeters is given by A= 2y(x+z) +xz
Find ;
a. A if x=20, y=15, and z=10
b. Z if a =512, x=12, and y =5

  

Answers

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a. A= 2y(x+z) +xz
A= 2X15(20 +10) +(20x10)
A= 1100
b. A= 2y(x+z) +xz
512= 2X5(12+z) +12xz
512=120 + 22z
392 =22z
17.81 =z

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joseph rimiru answered the question on October 25, 2017 at 11:52

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