How does the graph of f(x)=5cos(1/2x)-2 differ from the graph of g(x)= 5cos(x)-2

step-by-step explanation: a reaction is first order. if the initial reactant concentration is 0.0200 m, and 25.0 days later the concentration is 6.25 x 10-4 m, then its half-life is:

use this formula:

p(a\b) = p(a and b)/p(b).

take it from here.

if you need just tell me and i will come to the rescue.

step-by-step explanation:

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