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Trigonometric

please solve this quest, i have my exam tomorrow

A tower stands on level ground and is due north point A. The tower is also due west of another point B. From the top of the tower and angles of depression of A and B are 60° and 45° respectively....

...World Center building in Los Angeles. At a distance of 222 feet from a point directly below the sign, the angle between the ground and the top of the sign was 77.69°. Approximate the height of...

A triangular lot has sides of lengths 242ft, 160ft, 184ft. If the cost per square foot per land is appraised at \$40, what is the appraised value of the lot?

A belt connects two pulleys with radii 2.7 inches and 4.5 inches. The larger pulley is rotating at 20 rpm.  A) What is the angular speed of the larger pulley, in radians per minutes?    B)...

A paper come is unfolded to reveal that it is formed using a sector of a circle with radius 3 inches. If the arc length around the top of the cone is 7.7 inches what is the surface area of the outside...

A man standing on a hill that is 500 ft high sees a bear walking straight toward the hill. He measures the angle of depression to the bear to be 10, and then measures again 5 minutes later to find...