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A t of the water, H, in feet, at a boat dock t hours after 6 A.M. is given by H=30+7 sint. Complete parts (a)-(c).

A t of the water, H, in feet, at a boat dock t hours after 6 A.M. is given by H=30+7 sint. Complete parts (a)-(c).

Advanced Engineering Mathematics
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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π The height of the water, H, in feet, at a boat dock t hours after 6 A.M. is given by H = 30 + 7 sint. Complete parts (a)-(c). (a) Find the height of the water at the dock at 6 A.M., 9 A.M., noon, 6 P.M., midnight, and 3 A.M. The height of the water at the dock at 6 A.M. is The height of the water at the dock at 9 A.M. is The height of the water at the dock at noon is ft. ft. ft. The height of the water at the dock at 6 P.M. is The height of the water at the dock at midnight is The height of the water at the dock at 3 A.M. is ft. (b) When is low tide and when is high tide? Choose the correct answer below. ft. ft. O A. Low tide is at noon. High tide is at midnight. O B. Low tide is 3 A.M. High tide is at 9 A.M. OC. Low tide is 3 A.M. and 3 P.M. High tide is at 9 A.M. and 9 P.M. D. Low tide is 9 A.M. and 9 P.M. High tide is at 3 A.M. and 3 P.M. O E. Low tide is 3 A.M. and 6 P.M. High tide is at 6 A.M. and 3 P.M. O F. Low tide is 6 A.M. and 3 P.M. High tide is at 3 A.M. and 6 P.M. (c) What is the period of this function and what does this mean about the tides? (c) What is the period of this function and what does this mean about the tides? The period of the function is hr. This means, that low tides occur every hours and high tides occur every hours.
Transcribed Image Text:π The height of the water, H, in feet, at a boat dock t hours after 6 A.M. is given by H = 30 + 7 sint. Complete parts (a)-(c). (a) Find the height of the water at the dock at 6 A.M., 9 A.M., noon, 6 P.M., midnight, and 3 A.M. The height of the water at the dock at 6 A.M. is The height of the water at the dock at 9 A.M. is The height of the water at the dock at noon is ft. ft. ft. The height of the water at the dock at 6 P.M. is The height of the water at the dock at midnight is The height of the water at the dock at 3 A.M. is ft. (b) When is low tide and when is high tide? Choose the correct answer below. ft. ft. O A. Low tide is at noon. High tide is at midnight. O B. Low tide is 3 A.M. High tide is at 9 A.M. OC. Low tide is 3 A.M. and 3 P.M. High tide is at 9 A.M. and 9 P.M. D. Low tide is 9 A.M. and 9 P.M. High tide is at 3 A.M. and 3 P.M. O E. Low tide is 3 A.M. and 6 P.M. High tide is at 6 A.M. and 3 P.M. O F. Low tide is 6 A.M. and 3 P.M. High tide is at 3 A.M. and 6 P.M. (c) What is the period of this function and what does this mean about the tides? (c) What is the period of this function and what does this mean about the tides? The period of the function is hr. This means, that low tides occur every hours and high tides occur every hours.
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