Question

Solve the following using the following information and the Law of Cosincs 59. A log is seen floating down a stream. The log is first spotted 10 feet away. Ten seconds later the log is 70 feet away making a 60° angle between the two sightings. How far did the log travel? 20 feet 6010 feet 61. Astronomers once thought the Sun revolved around the Earth. The Sun is 9.3 x 10 miles away and moves 15 across the sky in an hour. Assuming the Sun travels in a straight line, how far would it have had to travel? 93 x 10 miles Construct a triangle, if possible, using the following information and the Law of Cosines 43. A = 60°, 3.c - 7 79. d = 5, 10,c7

Answer 1

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59 A B. oor hoe 70H loft 1 do 60 C Let the log travelled feet - COSA= 6²4c² Q² abc By wsine law 13 Losto x² = (70)² + ( 103² – 2 (70) (10) Los 60 u900 + 100 700 1400 X x 1 X2= 4300 X = 65.57 feet 01- The log travelled 65.57ft. from B to A.

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