Answer highlighted in blue. Hope this helps.
Answer:
8
Step-by-step explanation:
4 x 4 = 16 / 2 = 8 since it is half the 4 by 4
on edge it's C. If Terrence samples 800 more people, his margin of error will be the same as Deena’s.
Answer:
Step-by-step explanation:
Your equation makes no sense.
I will ASSUME you mean
y = -x² - 2x + 3
which can be factored
y = (x + 3)(-x + 1)
x intercepts occur when y = 0
0 = (x + 3)(-x + 1)
which means either
x + 3 = 0
x = -3
or
-x + 1 = 0
x = 1
x intercepts are (-3, 0) and (1, 0)
The vertex will occur halfway between these point
x = (-3 + 1) / 2 = -1
so vertex = y = -(-1)² - 2(-1) + 3 = 4
(-1, 4)
Answer:
AD=AB
Step-by-step explanation:
3x-5=x+1
It's a square
You solve for x then plug it back in
