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3 years ago

13

the measures of an exterior angle and the adjacent interior angle add p to 360 because they form a linear plane?

1 answer:

inn [45]3 years ago

6 0

Sadly, I can't see the picture you're looking at as you make that statement.
But I'm pretty sure that when you combine an exterior angle with the interior
angle adjacent to it, you'll wind up with 180°, because they form a linear line.
There actually isn't any such thing as a linear plane.

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1) $x=\dfrac12$

2) $n = -3 \ \ \textsf{and} \ \ m = -4$

3) see below

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Step-by-step explanation:

<u>Question 1</u>

$15-0.5(4x-2)+4x=17$

$\implies 15-2x+1+4x=17$

$\implies 2x+16=17$

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<u>Question 2</u>

$\textsf{rearrange} \ n=m+1 :$

$\implies -m=-n+1$

$\textsf{add equations} \ -m=-n+1 \ \textsf{and} \ m=2n+2:\\$

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$\textsf{substitute} \ \ n=-3 \ \ \textsf{into} \ \ m=n-1:$

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<u>Question 3</u>

subtract the second equation from the first

divide both sides by -4

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<u>Question 4</u>

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$\textsf{rearrange} \ 3j=k :$

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