According to a legend the Chinese emperor yu Huang saw a magic square on the back of a turtle. In a magic square on the back of a turtle. In a magic square, the numbers in each column gave the same sum. This sum is called the magic sum. Copy and complete the magic square so that each row and each column has a magic sum of 0. Use each integer from -4 to 4 exactly once

1. there are 25 students who started computer programming in elementary school and 25 students who started computer programming in middle school. the first group had a mean final project grade of 95% and the second group had a mean final project grade of 92%. the line plot shows the differences after 10 rerandomizations. determine whether the difference in the means of the two groups is significant based on the line plot. explain your answer.

Find the pattern and use it to list the nth term in the sequence. 6, 12, 20, 30, 42, 56, the nth term of the sequence is

Atriangle has an area of 72 square inches. if the base of the triangle has a length of 18 inches, what is the height of the triangle? use the formula for the area of a triangle: area = (base)(height) type a numerical answer in the space provided. do not include the units or spaces in your answer.