- 2.
- and d.
- 3.
- sq. ft. and d sq. ft.
- 6.
- increases by about 6%.
- 9.
- (a) We see only
of the cycle of a sinusoid, so it
looks pretty straight.
(b) Since the graph crosses 12, the month contains an equinox. The graph is increasing, so the days are getting longer. Since Buenos Aires is in the southern hemisphere, the month is September.

- 10.
- (c)
and , so the estimate to
is 1.01 and the exact value is
.
(f) The estimate to is and the actual value is about 3.979057.

- 11.
- (a)
(c)
(e)
(g)
.
- F.
- (a)
.
(b) .

(c) .

Jason Grout 2003-02-19