Which of the following functions represents f(n), the number of small squares in figure n? A. f(n) = (n+1)(n+2)
B. f(n) = n(n+3)
c f(n) = n(n+1)
D. f(n) = (n+1)(n+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.

Select all of the quadrants that the parabola whose equation is y=√x-4 (principal square root) occupies. i ii iii iv

Which of the following is a function? a.) {(-2, -4/5), (-1,-,,-1)} b.) {(-2,,1/,3/,1)} c.) {(-22)} d.) {(-21)}