7. Ship A is traveling due west toward Lighthouse Rock at a speed of 15 km/hr. Ship B is N traveling due north away from Lighthouse Rock at a speed of 10 km/hr. Let x be the distance between Ship A and Lighthouse Rock at time t, and let y be the distance between Ship B and lighthouse rock at time t. (a) Find the distance between Ship A and Ship B when x = 4 km and y = 3 km. Ship B -E (b) Find the rate of change of the distance between the two ships when x = 4 km and y = З кт. (c) Let 8 be the angle shown in the figure. Find the rate of change of e in radians per hours Ship A Lighthouse Rock when x = 4 km and y = 3 km.

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter7: Analytic Trigonometry
Section7.6: The Inverse Trigonometric Functions
Problem 91E
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7. Ship A is traveling due west toward Lighthouse Rock at a speed of 15 km/hr. Ship B is
traveling due north away from Lighthouse Rock at a speed of 10 km/hr. Let x be the distance
between Ship A and Lighthouse Rock at time t, and let y be the distance between Ship B and
lighthouse rock at time t.
(a) Find the distance between Ship A and Ship B when x = 4 km and y = 3 km.
N
Ship B
-E
(b) Find the rate of change of the distance between the two ships when x = 4 km and y =
3 km.
Ship A
Lighthouse
Rock
(c) Let 8 be the angle shown in the figure. Find the rate of change of 6 in radians per hours
when x = 4 km and y = 3 km.
Transcribed Image Text:7. Ship A is traveling due west toward Lighthouse Rock at a speed of 15 km/hr. Ship B is traveling due north away from Lighthouse Rock at a speed of 10 km/hr. Let x be the distance between Ship A and Lighthouse Rock at time t, and let y be the distance between Ship B and lighthouse rock at time t. (a) Find the distance between Ship A and Ship B when x = 4 km and y = 3 km. N Ship B -E (b) Find the rate of change of the distance between the two ships when x = 4 km and y = 3 km. Ship A Lighthouse Rock (c) Let 8 be the angle shown in the figure. Find the rate of change of 6 in radians per hours when x = 4 km and y = 3 km.
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