The Projected Monthly Sales (In Thousands of Units)of Lawn Mowers $$S = 71 + 3 t - 40 \cos \left( \frac { \pi t } { 6 } \right)$$

question 18

Multiple Choice

The projected monthly sales (in thousands of units) of lawn mowers (a seasonal product) are modeled by​ $$S = 71 + 3 t - 40 \cos \left( \frac { \pi t } { 6 } \right)$$ ​ where t is the time (in months) ,with t = 1 corresponding to January.Select the graph of the sales function over 1 year.
​

• A)​
• B)​
• C)​
• D)​

---

Definitions:

Duals

A term often referring to the pairing of two tires on each side of an axle, common in heavy-duty vehicles to increase load capacity and stability.

18-Wheeler

A term commonly used to refer to a tractor-trailer or semi-trailer truck, characterized by having a total of eighteen wheels to distribute the weight of heavy loads.

OSHA

The Occupational Safety and Health Administration, a federal agency of the United States responsible for ensuring safe and healthy working conditions.

Split Rims

Split rims are a type of vehicle wheel construction, consisting of multiple pieces that are bolted together, making tire changes easier but also bearing certain safety concerns.