Sales of Computers Are Subject to Seasonal Fluctuations $s ( t ) = 0.468 \sin ( 1.25 t + 1.73 ) + 0.79 ( 1 \leq t \leq 6 )$

question 65

Multiple Choice

Sales of computers are subject to seasonal fluctuations. Computer City's sales of computers in 1995 and 1996 can be approximated by the function $s ( t ) = 0.468 \sin ( 1.25 t + 1.73 ) + 0.79 ( 1 \leq t \leq 6 )$
Where t is time in quarters ( $t = 1$ represents the end of the first quarter of 1995) and $s ( t )$ is computer sales (quarterly revenue) in billions of dollars. Estimate Computer City's maximum and minimum quarterly revenue from computer sales.

• A) \(s _ { \max } = 1.526\) , \(s _ { \min } = 0.074\)
• B) \(s _ { \max } = 0.79\) , \(s _ { \min } = 0.468\)
• C) \(s _ { \max } = 2.048\) , \(s _ { \min } = 1.112\)
• D) \(s _ { \max } = 2.194\) , \(s _ { \min } = 0.146\)
• E) \(s _ { \max } = 1.258\) , \(s _ { \min } = 0.322\)