What is the volume of a cylinder with a height of 15 and a radius of 11
a.968pie units^3
b.352pie units^3
c.1815pie units^3
d.204pie^2 units^3

Describe in detail how you would construct a 95% confidence interval for a set of 30 data points whose mean is 20 and population standard deviation is 3. be sure to show that you know the formula and how to plug into it. also, clearly state the margin of error.

The ratio of the measures of the three angles in a triangle is 2: 9: 4. find the measures of the angels

When 142 is added to a number the result is 64 more times the number my options are 35 37 39 41