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DerKrebs [107]
3 years ago
12

This is my last question please help me

Mathematics
1 answer:
anastassius [24]3 years ago
7 0

Answer:

Angle ADC = 80 degrees

Step-by-step explanation:

Here, we want to find the measure of angle ADC

mathematically, sum of angles at a point is 360

Thus;

x + 3x + x + 10 = 360

5x + 10 = 360

5x = 360-10

5x = 350

x = 350/5

x = 70

From the diagram;

angle ADC is (x + 10)

so we have; (70 + 10) = 80 degrees

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17 is a prime number whereas 26,44 and 65 are the composite numbers.

<u>Step-by-step explanation:</u>

The number 17 does not belong with 26, 44 and 65.

Here 26 is divisible by 2 and 13.

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3 years ago
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3 years ago
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