Solve the Problem $\mathrm { n } = 73.92 + 27.7 \sin \frac { \pi \mathrm { t } } { 24 }$

question 135

Multiple Choice

Solve the problem.
-The weekly sales in thousands of items of a product has a seasonal sales record approximated by $\mathrm { n } = 73.92 + 27.7 \sin \frac { \pi \mathrm { t } } { 24 }$ ( $\mathrm { t } =$ time in weeks with $\mathrm { t } = 1$ referring to the first week in the year) . During which week(s) will the sales equal 87,770 items?

• A) week 4 and week 47
• B) week 30 and week 47
• C) week 21 and week 30
• D) week 4 , week 20 , and week 52

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Definitions:

Aggregates

Collections or clusters of objects, often used in the context of materials science (for composite materials) or data (for information grouping).

Helper T Cell

Subset of T lymphocytes that increases the activity of B cells and T cells.

Cytokines

Small proteins released by cells, especially in the immune system, that have a specific effect on interactions and communications between cells.

Effector T Cells

A type of T cell that actively responds to a pathogen by directly killing infected host cells or by signaling other immune responses.