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LINEAR EQUATIONS AND INEQUALITIES + TRIGONOMETRY AND BEARING

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What is the back bearing of 135°?

A 315° B 225° C 045° D 135°

Solve for x: √x = 5

A 5 B 25 C √5 D 10

What is the angle of elevation from a point on the ground to the top of a building if the observer looks up?

A The angle above the horizontal line B The angle below the horizontal line C The angle between the building and the ground D The angle between the observer and the building

What is the angle of depression from a point A (height 100 m) to point B on the ground if the horizontal distance is 100 m?

A 45° B 30° C 60° D 90°

What is the solution of √(2x + 3) = 7?

A 23 B 49 C 26 D 20

What is the angle of depression if a person looks down from a height to an object on the ground?

A The angle between the line of sight and the horizontal B The angle between the vertical and the line of sight C The angle at the object D The angle at the observer's feet

A tower casts a shadow 20 m long when the sun's elevation is 30°. How tall is the tower?

A 20/√3 m B 20√3 m C 10 m D 40 m

Simplify: sin² θ + cos² θ = ?

A 1 B 0 C sin θ D cos θ

From the top of a cliff 50 m high, the angle of depression of a boat is 30°. How far is the boat from the base of the cliff?

A 50√3 m B 50/√3 m C 100 m D 25 m

What is the solution of √(2x - 1) = 3?

A 5 B 4 C 6 D 8

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