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SVEN [57.7K]
3 years ago
15

Given that the measure of ∠x is 123°, and the measure of ∠y is 51°, find the measure of ∠z. °

Mathematics
1 answer:
Veronika [31]3 years ago
6 0

Answer:

The measure of angle z is 59°.

Step-by-step explanation:

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I need help with this ASAP!!!!!
ICE Princess25 [194]

Answer:

x=3

Step-by-step explanation:

∠DBC+∠VBC is 180° since it is a straight line, ∠VBC=20x+5

The sum of all angles in a triangle is 180°, 9x-2 + 40° +∠DBC=180°

To find x, you can find ∠DBC first.  *Don't forget BRACKETS

∠DBC=180-(20x+5)

∠DBC=180-(9x-2 + 40°)

Now equal the equations to each other to find x.

180-(20x+5)=180-(40+9x-2)

180-20x-5=180-40-9x+2

175-20x=142-9x

175-142=20x-9x

33=11x

x=33/11

∴x=3

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