9. What is the length of the hypotenuse of the triangle
when x = 15? Round your
answer to the nearest
tenth of a unit.

I don't know what nearest tenth of a unit means but answer is 78.23682

step-by-step explanation:

in the absence of parentheses, i will have to make some assumptions:   i interpret your (3x+5/y^6)(4y^3/5)​ to mean:

3x + 5     4y^(3/5)       (3x + 5)(4)

* =

    y^6             1               y^(6-3/5)

if this is not what you expected, repost your question using parentheses to indicate whether you meant

4y^3

    or   4y^(3/5)

    5

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step-by-step explanation: