The average high temperature during the hottest month in Beijing, China, is 72°F. The average high temperature during the coldest month in Beijing is 18°F. The function t = 27 cosine (StartFraction pi Over 6 EndFraction (m minus 6)) + 45, where m represents the number of months after January, models the temperature throughout the year in Beijing. During which month in the year would the temperature reach 55°F? August September November December

During the month of September.

Step-by-step explanation:

The temperature in Beijing, in m months after January, is given by the following equation:

In which m is the number of months after January.

During which month in the year would the temperature reach 55°F?

We have to find m for which: T(m) = 55. So

Applying the inverse cosine to both sides:

8.27 months after January

8.27 + 1 = 9.27, so during the month of September.

1d

2b

3 false

4 d

5 3200sq,ft

80+60+y=180

then divide the difference between 60 and y and add it to 180

so x =180 +( (y-60)/2)

x equals 200

step-by-step explanation:

8

ci

step-by-step explanation: