Answer:
volume= 56.55 yds
Step-by-step explanation:
If you're looking for the volume, the formula is
.
Diameter is two times the radius (radius is half of the diameter) so the radius of the cylinder would be 1.5 yds.
After you've gotten that information, plug those values into the formula.

Solve 1.5^2 first. Then multiply that value by pi. Then multiply that value by the height which is 8yds.
Volume=56.55yds rounded to the nearest hunderedth.
Answer:
The 95% confidence interval estimate for the true proportion of adults residents of this city who have cell phones is (0.81, 0.874).
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
.
For this problem, we have that:

95% 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 95% confidence interval estimate for the true proportion of adults residents of this city who have cell phones is (0.81, 0.874).
Answer:
80,000
Step-by-step explanation:
I hope this helps:)
Answer:
it should be 319
Step-by-step explanation:
Answer:
The first option (5.7km)
Step-by-step explanation:
Since we have a right angle triangle and we know two of its sides we can easily find out the thirds side (the value of d) by using the Pathagoras Theorem. In our case 7 and d are our legs and the hypotenuse is equal to 9, so...
(Based on the Pathagoras Theorem)



d ≈ 5.7km
There for aproximate distance across the lake is equal to 5.7km