12.
12x3 is already 36, more than 30..
Answer:
<h2>
0.05543</h2>
Step-by-step explanation:
The formula for calculating the margin of error is expressed as;
where;
z is the z-score at 95% confidence = 1.96 (This is gotten from z-table)
p is the percentage probability of those that watched network news
p = 40% = 0.4
n is the sample size = 300
Substituting this values into the formula will give;

Hence, the margin of error for this survey if we want 95% confidence in our estimate of the percent of T.V. viewers who watch network news programs is approximately 0.05543
Answer:

Step-by-step explanation:
<h2><u>IdEnTiTy UsED</u></h2>

1)

=(x-5)²
2)



3)

= (1+x)²
Answer:
8.89cm
Step-by-step explanation:
The ratio is 16:9 (which is one of the most common in TVs)
9:5=16:x
x=(16*5)/9
x=8.88....=8.89
2 3/4+1 5/8= deducted amount of apples
improper fraction= 11/4+13/8
same denominator= 2(11/4)+13/8
<span>2(11/4)+13/8=22/8+13/8=35/8=4 3/8</span>
6 1/2- 4 3/8
improper fraction= 13/2-35/8
same denominator= 4(13/2)-35/8
52/8-35/8= 17/8 lbs. There u go!