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3 years ago

I need help with this one because I got my answers wrong

Mathematics

1 answer:

cluponka [151]3 years ago

7 0

40+60+y=180
y=180-100
y=80

A triangle is 180° so you add all the numbers available in the trianle and minus it with 180 to see what is left from the 180 and that will be the inner angle answer

X=180-80=100

A straight line is also 180° so if u minused one side which in our case is 80 u will get the rest which is the outer angle

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For example,

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What this means for this problem is that there are two cases to consider:

If $x+\frac13\ge0$ , then $\left|x+\frac13\right|=x+\frac13$ , so that

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On the other hand, if $x+\frac13$ , then $\left|x+\frac13\right|=-\left(x+\frac13\right)$ , so

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