Quadrilateral ABCD is a parallelogram. if AB=2x-10 and CD=x+30,then AB=_​

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.

The scatter plot graph shows the average annual income for a certain profession based on the number of years of experience which of the following is most likely to be the equation of the trend line for this set of data? a. i=5350e +37100 b. i=5350e-37100 c. i=5350e d. e=5350e+37100

Which math sentence can be used to determine if the triangle is a right triangle?