Answer:
7(2x+9)
3(8-3)
Step-by-step explanation:
14x+63
We can factor out a 7
7(2x+9)
24-9
We can factor out a 3
3(8-3)
The answer is r=16 you have to square everything
Answer:
85 tables
Step-by-step explanation:
1012 divided by 12 is 84 and 1/3. We want to have room for everyone, so we round up to 85.
Answer:this is the work I’ve done so there
Answer:
The confidence limits for the proportion that plan to vote for the Democratic incumbent are 0.725 and 0.775.
Step-by-step explanation:
In a sample with a number n of people surveyed with a probability of a success of
, and a confidence level of
, we have the following confidence interval of proportions.

In which
z is the zscore that has a pvalue of
.
Of the 500 surveyed, 350 said they were going to vote for the Democratic incumbent.
This means that 
80% confidence level
So
, z is the value of Z that has a pvalue of
, so
.
The lower limit of this interval is:

The upper limit of this interval is:

The confidence limits for the proportion that plan to vote for the Democratic incumbent are 0.725 and 0.775.