A figure consists of a rectangular prism and a cube shown below What is the surface area of the figure? - Math - Please show work ty!

i dont know sorry

step-by-step explanation:

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answer:

25x^2 + 90x + 84

discussion:

mn(x) = m(n(x)) = m( 5x + 9) =

(5x + 9)^2 + 3 =>

25x^2 + 90x + 9^2 + 3 =

25x^2 + 90x + 84                 (as 9^2 = 9*9 = 81)

which is the second choice

regards,  

mrb

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180-142=38 for the acute angle next to the entry

90+38=128

180-128=52

a=52

step-by-step explanation: