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=
(S.
40. WORKING MOTHERS The percentage of mothers who work
qutside the home and have children younger than 6 years
old is approximated by the function
sti
deri
10205 hindi
P(t) = 33.55(t + 5) 0.205 (0 < t < 32)
where t is measured in years, with t = O corresponding to
at the beginning of 1980. Compute P"(20), and interpret
.
19
Source: U.S. Bureau of Labor Statistics.
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fapp your result

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