2x(-7)^2-9 = 2x49-9=98-9=89 maybe
Two angles<span> are said to be supplementary when the sum of the two </span>angles<span> is </span>180<span>°. ... All </span>angles<span> that are either exterior </span>angles<span>, </span>interior angles<span>, </span>alternate angles<span> or corresponding </span>angles<span> are all congruent.</span>
Answer:
Step-by-step explanation:
If the given polygon is a regular polygon, its sides are equal.
This means:
Subtract 
to both sides
4 = x
OR
x = 4
![\rule[225]{225}{2}](https://tex.z-dn.net/?f=%5Crule%5B225%5D%7B225%7D%7B2%7D)
Hope this helped!
<h3>~AH1807</h3>
Slope = change in y / change in x
= (8 - -3) / (1 - 2) = (8 + 3) / ( 1 - 2)
= 11 / -1
= -11
Slope is negative.
If the slice is parallel to its base then it would be a rectangle also.
