Exam 2: Simplifying Expressions

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Solve the equation by multiplying both sides by -1. Solve the equation by multiplying both sides by -1.

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Solve the equation. Solve the equation.

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The figure below shows part of a room. From a point on the floor, the angle of elevation to the top of the door is The figure below shows part of a room. From a point on the floor, the angle of elevation to the top of the door is   , whereas the angle of elevation to the ceiling above the door is   . Use this diagram to write an equation involving   , and then solve the equation to find the number of degrees in the angle that extends from the top of the door to the ceiling.  , whereas the angle of elevation to the ceiling above the door is The figure below shows part of a room. From a point on the floor, the angle of elevation to the top of the door is   , whereas the angle of elevation to the ceiling above the door is   . Use this diagram to write an equation involving   , and then solve the equation to find the number of degrees in the angle that extends from the top of the door to the ceiling.  . Use this diagram to write an equation involving The figure below shows part of a room. From a point on the floor, the angle of elevation to the top of the door is   , whereas the angle of elevation to the ceiling above the door is   . Use this diagram to write an equation involving   , and then solve the equation to find the number of degrees in the angle that extends from the top of the door to the ceiling.  , and then solve the equation to find the number of degrees in the angle that extends from the top of the door to the ceiling. The figure below shows part of a room. From a point on the floor, the angle of elevation to the top of the door is   , whereas the angle of elevation to the ceiling above the door is   . Use this diagram to write an equation involving   , and then solve the equation to find the number of degrees in the angle that extends from the top of the door to the ceiling.

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Solve. Solve.     __________ Solve.     __________ __________

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The smallest angle in a triangle is The smallest angle in a triangle is   as large as the largest angle. The third angle is twice the smallest angle. Find the three angles. as large as the largest angle. The third angle is twice the smallest angle. Find the three angles.

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