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max2010maxim [7]
3 years ago
8

The average high temperature during the hottest month in Beijing, China, is 72°F. The average high temperature during the coldes

t month in Beijing is 18°F. The function t = 27 cosine (pi/6(m-6)) + 45, where m represents the number of months after January, models the temperature throughout the year in Beijing.
What is the first month in the year when the temperature reaches 55°F?
A. March
B. April
C. July
D. September
Mathematics
2 answers:
gladu [14]3 years ago
4 0

Answer:

It's April

Step-by-step explanation:

gizmo_the_mogwai [7]3 years ago
3 0
D. September is the year
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