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car 3. A formula for the depth d metres of water in a harbour at a time t hours after midnight is d=P+Qcos 0 St S 24, where P and Q are positive constants. In the following graph the point (6, 8.2) is a minimum point and the point (12, 14.6) is a maximum point. 15+ (12, 14.6) - 10: 28V e nia (6, 8.2) COS 5+ 6. 12 18 24 t de (a) Find the value of (i) (ii) P: \\H b) Find the first time in the 24-hour period when the depth of the water is 10 metres.

car 3. A formula for the depth d metres of water in a harbour at a time t hours after midnight is d=P+Qcos 0 St S 24, where P and Q are positive constants. In the following graph the point (6, 8.2) is a minimum point and the point (12, 14.6) is a maximum point. 15+ (12, 14.6) - 10: 28V e nia (6, 8.2) COS 5+ 6. 12 18 24 t de (a) Find the value of (i) (ii) P: \\H b) Find the first time in the 24-hour period when the depth of the water is 10 metres.

Algebra & Trigonometry with Analytic Geometry
Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter11: Topics From Analytic Geometry
Section11.4: Plane Curves And Parametric Equations
Problem 29E
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(c) (i) Use the symmetry of the graph to find the next time when the depth of the water is 10 metres. (ii) Hence find the time intervals in the 24-hour period during which the water is less than 10 metres deep. et f(x) = sin (2x + 1), 0 < x < a.
Transcribed Image Text:(c) (i) Use the symmetry of the graph to find the next time when the depth of the water is 10 metres. (ii) Hence find the time intervals in the 24-hour period during which the water is less than 10 metres deep. et f(x) = sin (2x + 1), 0 < x < a.
ver cal 3. A formula for the depth d metres of water in a harbour at a time t hours after midnight is d =P+Qcos 0 Sts 24, where P and Q are positive constants. In the following graph the point (6, 8.2) is a minimum point and the point (12, 14.6) is a maximum point. 15+ (12, 14.6) 10: CoS 223V e niz (6, 8.2) 5+ 6. 12 18 24 t (a) Find the value of (i) (ii) P: \\H (b) Find the first time in the 24-hour period when the depth of the water is 10 metres.
Transcribed Image Text:ver cal 3. A formula for the depth d metres of water in a harbour at a time t hours after midnight is d =P+Qcos 0 Sts 24, where P and Q are positive constants. In the following graph the point (6, 8.2) is a minimum point and the point (12, 14.6) is a maximum point. 15+ (12, 14.6) 10: CoS 223V e niz (6, 8.2) 5+ 6. 12 18 24 t (a) Find the value of (i) (ii) P: \\H (b) Find the first time in the 24-hour period when the depth of the water is 10 metres.
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