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2 years ago

Please help me, I don’t know what to do

Mathematics

1 answer:

Nikolay [14]2 years ago

5 0

Answer:

Number 1 is a function. If you can draw a vertical line through the line graphed and it doesn't pass through it twice, it is considered a function.

Number 2 is B.

Number 3 is A. **I don't know this one for certain, but I graphed A and B for you.

I don't know number 4.

Number 5 is Beatz on Demand. This company charges $5.99 a month, while iTunez charges $8.99 a month.

Step-by-step explanation:

Below is the graph for number 3.

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Answer:

(2x-10) +x +(x+10) = 180
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Step-by-step explanation:

The equation is an expression of the fact that <em>the sum of the angles in a triangle is 180°.</em>

(2x -10)° +x° +(x +10)° = 180°

For the purposes of the answer box, I'd leave off the degree symbol:

(2x -10) +x +(x +10) = 180

This simplifies to ...

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Then the angles (CW from top) are ...

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