18.84
Since the formula of circumference is C = 2 pi r or C = pi times diameter, you can conclude that the circumference is 18.84.
Assuming that pi is 3.14 in this case rather than the full pi or just in terms of pi.
Hope this helps!
Answer:
441.9 / 441.9107706
Step-by-step explanation:
441 2021/2219
Note: In option A, it should be "+" instead of "(".
Given:
The expression is
To find:
The equivalent expression.
Solution:
We have,
Using distributive property, we get
On combining like terms, we get
The expression is equivalent to the given expression.
Therefore, the correct option is A.
Answer:
n=1705
Step-by-step explanation:
The margin of error is the range of values below and above the sample statistic in a confidence interval.
Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".
Assuming the X follows a normal distribution
And the distribution for is:
We know that the margin of error for a confidence interval is given by:
(1)
The next step would be find the value of , and
Using the normal standard table, excel or a calculator we see that:
If we solve for n from formula (1) we got:
And we have everything to replace into the formula:
And if we round up the answer we see that the value of n to ensure the margin of error required mm is n=1705.
Answer:
c
Step-by-step explanation:
The minimum and the x intercept are the same point.
Your answer is the second best answer. The definition of an x intercept is the point on a graph where y = 0. In this case, the graph begins to move in the opposite direction from the direction it was moving.
And so the x intercept just touches the x axis. Good enough. It is still classified as the x intercept because y = 0.