Polygon efgh is similar to polygon jklm, and ef and jk are corresponding sides. you know the perimeter of each polygon and you know the measure of gh. what can you find?

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.

Which of the following is the true for f(x) = 5cos

Which of the following circles have their centers in the third quadrant? check all that apply.