Sn = n/2 (a1+an)
= 8/2 (3-38)
= 4 (-35)
= -140
SLOPE is the picture.
Point-Slope form is y+1=-1/2*(x+2)
The y=mx+b form is y=-1/2x-2
i hope its not confusing lol
Find the interior angle of the Pentagon first then use the rule : Interior angles add up to equal 180. Use your answer from that to find out what x is.
Answer and explanation:
25 x 3 = 75
75 x 2 = 150
I found the product of the first two numbers, then multiplied the third.
The answer is 150. Hope this helps!