(3x+1)+(2x+4)=90
3x+1+2x+4=90
5x+5=90
5x=85
x=17
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:
D
Step-by-step explanation:
is the correct answer i believe.
Answer:
(-4 , -3)
Step-by-step explanation:
(x value, y value)
You always count the x value first, and in this case you have to go to -4.
(-4 , y value)
then, you determine the y value, which in this case is -3.
So, your answer is:
(-4 , -3).
Hope this helps!! Have a great day!! ~Carley