*PLEASE ANSWER QUICK*
The normal monthly temperatures (°F) for Omaha, Nebraska, are recorded below.

-write a sinusoidal function that models Omaha’s monthly temperature variation
-use the model to estimate the normal temperature during the month of April.

1). A. Y=28 cod ( pi/6t- -7pi/6)+49
B y(4)= 49 °

2). A. Y=49 cos( pi/6t- 7pi/6) +28
B y(4)=56°

3). A. Y=28 sin(pi\6t- 7pi/6) +49
B. Y(4)=49°

4). A. Y=28 cos(pi/12t + 7pi/12)+49
B. Y(4)=49°