Which is a stretch of an exponential decay function? f(x) = one-fifth (one-fifth) Superscript x f(x) = One-fifth(5)x f(x) = 5One-fifth f(x) = 5(5)x

a orange at the grocery store idk what other product that could be

x^3-4x^2+3x-2/x^2+1

step-by-step explanation:

factor the numerator and denominator and cancel the common factors

ending amount = beginning amount / (2^n)

where "n" = number of half-lives (or elapsed time / half-life)

ending amount = 50 mg / (2 ^10 / 5.3)

ending amount = 50 mg / (2 ^ 1.8867924528)

ending amount = 50 m / 3.6981210597

ending amount = 13.5203794557 mg

or about 13.5 mg remain

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