Answer:
You can distribute the 5 into the parentheses, or u can divide on both sides to get rid of the 5. Either way, you're going to get the same answer.
Step-by-step explanation:
confidence coefficient for 99% is 2.58
2.58 * 19.4/sqrt(n) = 0.04
2.598*19.4/0.04 = sqrt(n)
( 2.598*19.4/0.04)^2 = n
1587676
Answer: -4(x+9)
-4.3
