For a sample size of 55 and a population parameter of 0.2, what is the standard error of the sampling distribution? Round your answer to three decimal places.

A. 0.028
B. 0.054
C. 0.035
D. 0.043

Geometry. i need step by step explanation on how to do each problem.

Place the following steps in order to complete the square and solve the quadratic equation,

What will the graph look like for a system of equations that has no solution? a. the lines will be perpendicular. b. the lines will cross at one point. c. both equations will form the same line. d. the lines will be parallel.