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3 years ago

PLEASEE HELPP FIND M A 19 B 22 C 23 D 161

Mathematics

2 answers:

Likurg_2 [28]3 years ago

7 0

M∠ABC=180°

7x+x-4 = 180
8x = 180+4
8x=184
x=184:8
x=23

∠DBС = x-4 = 23-4 = 19°

Answer: 19°.

tester [92]3 years ago

4 0

Answer:

C 23

Step-by-step explanation:From linear pair we can write $7x+(x-4)=180$

$7x+x-4=180\\8x-4=180\\8x=180+4\\8x=184\\x=\frac{184}{8} \\x=23$

Hence the value of x in the given figure is 23

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