Mathematics, 30.06.2021 21:50 suhailalitariq
The hourly temperature at Portland, Oregon, on a particular day is recorded below.
1 A. M.
2
3
4
5
6
7
8
9
10
11
12 Noon
46°
44°
43°
41°
40°
40°
41°
43°
46°
52°
65°
69°
1 P. M.
2
3
4
5
6
7
8
9
10
11
12 Midnight
72°
74°
75°
75°
77°
75°
74°
70°
62°
55°
51°
48°
a. Find the amplitude of a sinusoidal function that models this temperature variation.
b. Find the vertical shift of a sinusoidal function that models this temperature variation.
c. What is the period of a sinusoidal function that models this temperature variation?
d. Use t = 0 at 5 P. M. to write a sinusoidal function that models this temp. variation.
e. What is the model’s temperature at 10 A. M.? Compare this to the actual value?
Answers: 3
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1 A. M.
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