Answer: 235
Step-by-step explanation:
The formula to calculate the sample size :-

Given : Estimated proportion 
Margin of error : 
Significance level : 
Critical value : 
Now, the required sample size will be :-


Hence, the required minimum sample size = 235
Answer:
y= 1/2x+2
y int is 2
x int is -2
Step-by-step explanation:
plug in 0 for y int
set the equation equal to 0 for x int
You have to orginize them from smallest to largest, 'x' is the median so I put it in the middle:
3, 4, 10, x,15, 18, 21
That means 11-14 could be x.
Answer: The first term is 
Step-by-step explanation:
1. To rewrite the given polynomial in descending order, you must see the exponent of each variable of the terms. Then, you must arrange the terms from bigger to smaller.
2. Keeping this on mind, you have:

3. As you can see, the first term is: 