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EXAMPLE 1

All birds have feathers. a. b. Two angles are supplementary if they are a linear pair. a. All birds have feathers. EXAMPLE 1. Rewrite a statement in if-then form. Rewrite the conditional statement in if-then form. SOLUTION.

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EXAMPLE 1

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  1. All birds have feathers. a. b. Two angles are supplementary if they are a linear pair. a. All birdshavefeathers. EXAMPLE 1 Rewrite a statement in if-then form Rewrite the conditional statement in if-then form. SOLUTION First, identify the hypothesisand the conclusion. When you rewrite the statement in if-then form, you may need to reword the hypothesis or conclusion. If an animal is a bird, then it has feathers.

  2. Two angles are supplementaryif they are a linear pair. b. EXAMPLE 1 Rewrite a statement in if-then form If two angles are a linear pair, then they aresupplementary.

  3. 1. All 90° angles are right angles. ANSWER If the measure of an angle is 90°,then it is a right angle 2. 2x + 7 = 1, becausex = –3 ANSWER If x= –3, then 2x + 7 = 1 for Example 1 GUIDED PRACTICE Rewrite the conditional statement in if-then form.

  4. 3. Whenn = 9,n2 = 81. ANSWER If n = 9,thenn2 = 81. Tourists at the Alamo are in Texas. 4. ANSWER If tourists are at the Alamo, then they are in Texas. for Example 1 GUIDED PRACTICE Rewrite the conditional statement in if-then form.

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