True or false? a larger sample size produces a longer confidence interval for μ.

What number should be added to the expression x^2+3x+ in order to create a perfect square trinomial? 3/2 3 9/4 9

Draw a tape diagram to represent each situation.for some of the situations,you need to decide what to represent with a variable andre bakes 9 pans of brownies.he donates 7 pans to the school bake sale and keeps the rest to divide equally among his class of 30 students

If f(x) = 6x – 4, what is f(x) when x = 8? a2 b16 c44 d52