5-12 - Reference Angle Find the reference angle for the givenangle.5. (а) 120°(b) 200°(c) 285°6. (а) 175°(b) 310(с) 730°7. (а) 225°(b) 810°(с) -105°8. (а) 99°(b) - 199°(е) 359°9. (а)10(b)810т(c)10. (а)610т(b)9237(е)711. (а) 7(b) —1,4т(е) 1.412. (а) 2.3т(b) 2.3(с) -10т3.

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Trigonometry (MindTap Course List)

10th Edition

ISBN:9781337278461

Author:Ron Larson

Publisher:Ron Larson

Chapter1: Trigonometry

Section1.8: Applications And Models

Problem 20E

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Similar questions

Radius of the Earth In Exercise 80 of Section 5.1 a method was given for finding the radius of the earth. Here is a more modern method From a satellite 600 mi above the earth it is observed that the angle formed by the vertical and the line of sight to the horizon is 60.276. Use this information to find the radius of the earth.
The Learning Tower of Pisa The bell tower of the cathedral in Pisa, Italy, leans 5.6 from the vertical. A tourist stands 105 m from its base, with the tower leaning directly toward her. She measures the angle of elevation to the top of the tower to be 29.2. Find the length of the tower to the nearest meter.
Angle of Depression A cellular telephone tower that is 120 feet tall is placed on top of a mountain that is 1200 feet above sea level. What is the angle of depression from the top of the tower to a cell phone user who is 5 horizontal miles away and 400 feet above sea level?
Calculating an Angle A water tower 30 m tall is located at the top of a hill. From a distance of 120 m down the hill it is observed that the angle formed between the top and base of the tower is 8. Find the angle of inclination of the hill.
Distances to Venus The elongation of a planet is the angle formed by the planet, earth, and sun see the figure. It is known that the distance from the sun to Venus is 0.723 AU see Exercise 71 in Section 5.2. At a certain time the elongation of Venus is found to be 39.4. Find the possible distances from the earth to Venus at that time in astronomical units AU.
Determining a Distance A woman standing on a hill sees a flagpole that she knows is 60 ft tall. The angle of depression to the bottom of the pole is 14, and the angle of elevation to the top of the pole is 18, Find her distance x from the pole.
3. A truck is moving north at a speed of 70km/hr. The exhaust pipe above the truck cab sends out a trail smoke that makes an angle of 20 degrees East of south behind the truck . If the wind is blowing directly toward the East. What is the wind speed at that location?
Two airplanes leave an airport, travelling in the same direction. Thirty minutes later, an observer on the groundsees the first plane with an angle of elevation measuring 64 degrees and an altitude of 9000 m. At the same time, thesecond plane has an angle of elevation of 36 degrees (in the opposite direction) and an altitude of 10 000 m. Find the airdistance between the two planes, rounded to the nearest kilometre. Draw the diagram.
Two ships leave a harbor entrance at the same time. The first ship is traveling at a constant 12 miles per hour, while the second is traveling at a constant 14 miles per hour. If the angle between their courses is 169°, how far apart are they after 30 minutes? (Round your answer to the nearest whole number.) ------------mi
Law of Cosine There are 3 ships on the South China Sea named MV Berna, MV Maya and MV Josy. The sailors on MV Berna can see both MV Maya and MV Josy. The angle between the line of sight to MV Maya and the line of sight to MV Josy is 45 degrees. If the distance between MV Berna and MV Maya is 2 miles while the distance between MV Berna and MV Josy is 4 miles, what is the distance between MV Maya and MV Josy?
A telephone pole of height "h" is installed vertically on the side of a hill that makes an angle of 25 degrees with the horizontal. On the uphill side of this pole, a 9.15m guy wire is anchored to the ground at a point 5.50m from the base of the pole. a) Find the height, h, of the pole. b) Find the distance, d, on the downhill side to the point at which a 13.7m guy wire must be anchored
TWO TOWERS A & B ARE BOTH ON THE SAME HORIZONTAL GROUND. FROM THE TOP OF TOWER A, IT CREATES AN ANGLE OF DEPRESSION OF 28 DEGREES TO THE FOOT OF TOWER B. ALSO, FROM THE TOP OF B, IT CREATES AN ANGLE OF DEPRESSION OF 46 DEGREES TO THE TOP OF TOWER A. TOWER B IS 240 ft. TALL. QUESTION: WHAT IS THE DISTANCE BETWEEN THE TWO TOWERS?

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