Answer:
x=141
Step-by-step explanation:
(n-2)•180 = Sum of all the interior angles
n = # of sides
(7-2)•180
5•180
900= Sum of all the interior angles
Add all the angles and equal them to 900
125+122+131+x+7+x+107+x-15=900
Add all the numbers up first on the left side
477+3x=900
3x=423
x=141
Going by what I was taught in chemistry, there would only be 1.
#10. Sam: (4, 2); Theater: (-3, 5) #11. Sam is 3 km south and 7 km east of the
theater. #12. (-3, -4) #13. (-3, 0.5) #14. T (0.75, -1.0); U (0.75, 1.25); V (-0.75, 1.25) #15. W(-0.75, -1.0) #16. Janine is describing points that lie on the y-axis. Ordered pairs that lie on the x-axis have a y-coordinate of 0. The origin lies on the x- and y-axis. Any other point with an x-coordinate of 0 lies on the y-axis such as (0, 3).
I hope this helps joseph.. ^^ gl
