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5 August, 06:53

A tree 7ft tall grows an average pf 6in each year. which equation models the trees height h after x years?

A) h=0.5x+7

B) h=+-6x+7

C) h=-0.5x+7

D) h=6x + 7

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Answers (1)
  1. 5 August, 06:56
    0
    A) h=0.5x+7

    Step-by-step explanation:

    given

    initial height = 7 feet

    growth rate = 6 in = 0.5 feet / year

    let # of growing years = x

    For a linear growth rate:

    height after x years, h = initial height + (# of growing years) * (growth rate)

    substiuting the values above into this equation

    h = 7 feet + (x years) * (0.5 feet/year)

    or

    h = 7 + 0.5x (rearranging)

    h = 0.5x + 7
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