Answer:
9x + 14
Step-by-step explanation:
You need to add like terms. Add your x's together and your constants together:
5x + 4x + 6 + 8
9x + 14
Yes................................................
Answer:
The appropriate answer is "144".
Step-by-step explanation:
Given:
Population standard deviation,

Margin of error,

%

Or,


Now,
Critical value,
= 
= 
= 
The minimum sample size will be:
⇒ 
By putting the values, we get



or,
-5+7=2, and -2+7=5 so now it would be 2<5! :-)
Answer:

Step-by-step explanation:
=
If you need to simplify:
=
= 
= 