Posted by shellie on Friday, February 15, 2013 at 12:59pm.
8.
A conveyor belt carries supplies from the first floor to the second floor, which is 27 feet higher. The belt makes a 60° angle with the ground. How far do the supplies travel from one end of the conveyor belt to the other? Round your answer to the nearest foot. If the belt moves at 75 ft/min, how long, to the nearest tenth of a minute, does it take the supplies to move to the second floor?
47 ft; 38 min
31 ft; 0.4 min
38 ft; 23.3 min
16 ft; 1.1 min

geometry  Reiny, Friday, February 15, 2013 at 1:05pm
You are just looking for the hypotenuse of a rightangled triangle with height 27 and base angle of 60°
using fundamental trig ....
sin60° = 27/h, where h is the hypotenuse
h = 27/sin60 = 31.1769 ft
= 31 ft, 2 inches
time =distance/rate = 31.1769/75 = .416 minutes
choose your answers

geometry  shellie, Friday, February 15, 2013 at 1:42pm
B.

geometry  ashley, Monday, February 18, 2013 at 11:36pm
your neighbor is standing at the top of a 14 foot ladder. the base is 4 feet from the house. how far off the ground is your neighbor
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