Solve the problem.Tides go up and down in a 12.4-hour period. The average depth of a certain river is 11 m and ranges from 8 to 14 m. The variation can be approximated by a sine curve. Write an equation that gives the approximate variation y, if x is the number of hours after midnight if high tide occurs at 8:00 am.
A. y = 11 sin (
- 
)
B. y = 3 sin (
- 
)
C. y = 3 sin (
- 
)
D. y = 11 sin (
- 8?)
Answer: B
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Fill in the blank(s) with the appropriate word(s).
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A. True B. False