7. A ship sails South 2 km, then turns West. If it sails at a rate of 10 kph, find the rate at which it is leaving the starting point after 30 minutes. a. b. c. 6.3 kph 7.3 kph d. 8.3 kph None of these m and at the same elevation as, the lamp attached to the end of a vertical 6 m post is dropped. How long the horizontal ground 1 second later? 75 m/s

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter4: Polynomial And Rational Functions
Section4.3: Zeros Of Polynomials
Problem 68E
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c.
d.
7. A ship sails South 2 km, then turns West. If it sails at a rate of 10 kph, find the rate at which it is leaving the starting
point after 30 minutes.
a. 6.3 kph
8.3 kph
b. 7.3 kph
None of these
8. A body 3 m from, and at the same elevation as, the lamp attached to the end of a vertical 6 m post is dropped. How
fast is the shadow of the body moving along the horizontal ground 1 second later?
-7.5 m/s
-1.2 m/s
a.
-8.1 m/s
b. -4.3 m/s
C.
d.
noual squares fr
Transcribed Image Text:c. d. 7. A ship sails South 2 km, then turns West. If it sails at a rate of 10 kph, find the rate at which it is leaving the starting point after 30 minutes. a. 6.3 kph 8.3 kph b. 7.3 kph None of these 8. A body 3 m from, and at the same elevation as, the lamp attached to the end of a vertical 6 m post is dropped. How fast is the shadow of the body moving along the horizontal ground 1 second later? -7.5 m/s -1.2 m/s a. -8.1 m/s b. -4.3 m/s C. d. noual squares fr
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c.
d.
7. A ship sails South 2 km, then turns West. If it sails at a rate of 10 kph, find the rate at which it is leaving the starting
point after 30 minutes.
a. 6.3 kph
8.3 kph
b. 7.3 kph
None of these
8. A body 3 m from, and at the same elevation as, the lamp attached to the end of a vertical 6 m post is dropped. How
fast is the shadow of the body moving along the horizontal ground 1 second later?
-7.5 m/s
-1.2 m/s
a.
-8.1 m/s
b. -4.3 m/s
C.
d.
noual squares fr
Transcribed Image Text:c. d. 7. A ship sails South 2 km, then turns West. If it sails at a rate of 10 kph, find the rate at which it is leaving the starting point after 30 minutes. a. 6.3 kph 8.3 kph b. 7.3 kph None of these 8. A body 3 m from, and at the same elevation as, the lamp attached to the end of a vertical 6 m post is dropped. How fast is the shadow of the body moving along the horizontal ground 1 second later? -7.5 m/s -1.2 m/s a. -8.1 m/s b. -4.3 m/s C. d. noual squares fr
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