deshawn214 deshawn214

12-01-2021
Mathematics

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In the triangle, suppose that m

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strider874 strider874

12-01-2021

Answer:

12

Step-by-step explanation:

angle E is 90º so the other two angles must sum to 90º

4x-15+3x+21=90

7x+6=90

7x=84

x=12º

m∠C=4(12)-15=48-15=33º

m∠D=3(12)+21=36+21=57º

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