Answer:
40percent
Step-by-step explanation:
30-12-6 is 12
12/30 times 100 is 40
Answer:
-2x + 1
Step-by-step explanation:
3 + 7x - (2 + 9x)
Distribute the negative:
3 + 7x - 2 - 9x
Combine like terms:
-2x + 1
Using a calculator, we can check that
.
Lets evaluate each one of our expression the check which one is closest to
:
We can conclude that the value of <span>
(1 +1/34) to the power of 34 is the closest to the value of </span>
.
Answer:
Step-by-step explanation:
Assuming conditions are met, the formula for a confidence interval (CI) for the difference between two population proportions is where and are the sample proportion and sample size of the first sample, and and are the sample proportion and sample size of the second sample.
We see that and . We also know that a 98% confidence level corresponds to a critical value of , so we can plug these values into the formula to get our desired confidence interval:
Hence, we are 98% confident that the true difference in the proportion of people that live in a city who identify as a democrat and the proportion of people that live in a rural area who identify as a democrat is contained within the interval {-0.2941,-0.0337}
The 98% confidence interval also suggests that it may be more likely that identified democrats in a rural area have a greater proportion than identified democrats in a city since the differences in the interval are less than 0.
Answer:
2x + 3x = 5x.
Explanation:
Since they both have the same variable you can just add them so you get 5x.
I hope this helps you :D