Mason stands on the 5th step of a vertical ladder. the ladder has 15 steps, and the height difference between consecutive steps is 0.5m. h(n) models the height above the ground of mason's feet (in m) after moving n steps (if mason went down the ladder, n is negative). which number type is more appropriate for the domain of h? what's the appropriate domain?

kbmflmklbhml; bmlzb; bdhzz

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

p.s.   i'll be on vacation from friday, dec 22 to jan 2, 2019. have a great new year!