Answer:
The negative outside the parentheses indicates that the vertex is a maximum
f(x) has a minimum vertex
g(x) has a maximum
Step-by-step explanation:
Answer: A. -5/2
For sake of convenience, reverse the series, then it would be:
21,19,17.....7
a=21, d = -2,
s(4) = 4/2 (21+15)
s(4)=2(36)
s(4) = 72
14 and 16
your adding 2 to each each time, if your looking for the multiplied awnser its 224
x=-10
reorder the terms: 8+2x=18+3x
solve: 8+2x=18+3x
-3x -3x
_________
8-1x=18
-8. -8
________
-1x= 10
__ __
-1 -1
<u>x= -10</u>
