Given :
p = 0.68
margin of error, E = 0.1
99% confident interval
alpha, α = 1 - 0.99
= 0.01

∴
(z-critical value)
Sample size = 


= 144.37
= 145 (rounded off)
Therefore, there are 145 businesses does she need to sample to meet this criteria.
5x-4=4x+8
-4x. -4x
X-4=8
+4. +4
X=12
5(12)-4=4(12)+8
60-4=48+8
56=56
Thank you!! Have a great day!
F(4)=2(4)^3-5(4)^2-11(4)-4=128-80-44-4=0
Solution is 4
Answer:
hey bud i dont think you finished the question?
Step-by-step explanation: