angelique9236112 angelique9236112

19-10-2020
Mathematics

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ZA and ZB are vertical angles. If mZA = (4x + 14) and mZB = (5x – 5)°,
then find the measure of ZA.

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babysnuggles1 babysnuggles1

19-10-2020

Answer:

90°

Step-by-step explanation:

Since they are vertical angles, they equal eachother

4x+15=5x-5

add the 5 to both sides

4x+19=5x

subtract the 4x from both sides

x=19

Then you have to plug in 19 to find the measure of ZA

4(19)+14

76+14

90

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