The percentage of research articles in a prominent journal written by researchers in the United States during 1983–2003 can be modeled by A(t) = 26 +

33

1 + 0.5(0.6)−t

where t is time in years (t = 0 represents 1983). Numerically estimate

lim

t→+[infinity]

A(t).

(If you need to use or –, enter INFINITY or –INFINITY, respectively. If an answer does not exist, enter DNE.)

d? maybe

step-by-step explanation:

x =±sqrt(1/3)

step-by-step explanation:

x+4/6x=1/x

multiply each side by 6x to get rid of the fractions

6x*(x+4/6x)=1/x*6x

distribute

6x^2 +4 = 6

subtract 4 from each side

6x^2 +4-4 = 6-4

6x^2 =2

divide by 6

6x^2/6 = 2/6

x^2 = 1/3

take the square root of each side

sqrt(x^2) = ±sqrt(1/3)

x =±sqrt(1/3)

x-3y=4

step-by-step e

the photograph is photographer and- in the process- ourselves.

step-by-step explanation: