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What is the right choice for question 29) ? http://postimg.org/image/s0e49w3h9/

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jayson94 | Salutatorian

Posted August 17, 2013 at 10:30 PM via web

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What is the right choice for question 29) ?

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baxthum8 | High School Teacher | (Level 3) Associate Educator

Posted August 18, 2013 at 12:49 AM (Answer #1)

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`H(t)=2.5cos2pi((t-3)/12)+4`

t = 12 since t = # of hours after midnight and noon is 12 hours after midnight.

plug in 12 for t and calculate

`H(t)=2.5cos2pi((12-3)/12)+4`

` ` `H(t)=2.5cos2pi(9/12)+4`

` `

`H(t) = 2.5cos((3pi)/2)+ 4` ` `

`H(t)=0+4`

`H(t)=4`

correct answer is choice "d"

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