Figure 6 shows the migration rate M(t) of Ireland in the period 1988–1998. This is the rate at which people (in thousands per year) moved into or out of the country. (a) Is the following integral positive or negative? What does this quantity represent? 1998 M(t) dt 1988 (b) Did migration in the period 1988–1998 result in a net influx of people into Ireland or a net outflow of people from Ireland? (c) During which 2 years could the Irish prime minister announce, "We've hit an inflection point. We are still losing population, but the trend is now improving." M(t) 30 20 10 1994 1988 1990/ 1992 1996 1998 2000 -10 - -20 -30 -40 -50- FIGURE 6 Irish migration rate (thousands per year).

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Figure 6 shows the migration rate M(t) of Ireland in the period
1988–1998. This is the rate at which people (in thousands per year) moved
into or out of the country.
(a) Is the following integral positive or negative? What does this quantity
represent?
1998
M(t) dt
1988
(b) Did migration in the period 1988–1998 result in a net influx of people
into Ireland or a net outflow of people from Ireland?
(c) During which 2 years could the Irish prime minister announce,
"We've hit an inflection point. We are still losing population, but the trend
is now improving."
M(t)
30
20
10
1994
1988 1990/ 1992
1996 1998 2000
-10 -
-20
-30
-40
-50-
FIGURE 6 Irish migration rate (thousands per year).
Transcribed Image Text:Figure 6 shows the migration rate M(t) of Ireland in the period 1988–1998. This is the rate at which people (in thousands per year) moved into or out of the country. (a) Is the following integral positive or negative? What does this quantity represent? 1998 M(t) dt 1988 (b) Did migration in the period 1988–1998 result in a net influx of people into Ireland or a net outflow of people from Ireland? (c) During which 2 years could the Irish prime minister announce, "We've hit an inflection point. We are still losing population, but the trend is now improving." M(t) 30 20 10 1994 1988 1990/ 1992 1996 1998 2000 -10 - -20 -30 -40 -50- FIGURE 6 Irish migration rate (thousands per year).
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