How can we find the rational approximation of 20

4.47

Step-by-step explanation:

√ 20 ≈ 2889 over  646 ≈ 4.472136

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

the expression (1.26)2t reveals the approximate rate of increases in the number of plants semiannually.

hope this : )