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kari74 [83]
1 year ago
6

What's the answer to this

Mathematics
1 answer:
White raven [17]1 year ago
4 0

Step-by-step explanation:

the angle CDB is the supplementary angle to 9x+10 (angle ADC).

that means they stand together for 180°. as all angles around a single point on one side of a line are together always 180°.

and then, the sum of all angles in a triangle is always 180°.

so,

CDB + (4x + 10) + 50 = 180

CDB = 180 - (9x + 10) = 180 - 9x - 19 = 170 - 9x

therefore,

(170 - 9x) + (4x + 10) + 50 = 180

170 - 9x + 4x + 10 + 50 = 180

-5x = -50

5x = 50

x = 10

angle CDB = 170 - 9x = 170 - 90 = 80°

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2 years ago
Look at the sequence in the table.
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2 years ago
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podryga [215]

Answer:

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The correct option is a

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Answer:

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8 0
2 years ago
Help plz it’s math number 9
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#9)
|360 - 380| = |-20| = 20

answer
Distance between 360 and 380 on the number line is 20
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