Mario claims that a rhombus is sometimes a square, but a square is always a rhombus. is he correct? explain your answer

The mean of a set of data is -3.82 and its standard deviation is 2.31. find the z score for a value of 3.99.

Graph the system of equations on your graph paper to answer the question. {y=−x+4y=x−2 what is the solution for the system of equations? enter your answer in the boxes.

Which number is located at point a on the number line? a number line is shown from negative 10 to 10 with each interval mark on the number line representing one unit. point a is labeled one interval mark to the right of negative 5.