Plzzz ! (statistics)

a student graduated from a 4-year college with an outstanding loan of $9914, where the average debt is $8484 with a standard deviation of $1817. another student graduated from a university with an outstanding loan of 11,749, where the average of the outstanding loans was $10,357 with a standard deviation of $2113.

find the corresponding z score for each student. round z scores to two decimal places.

Polygon mnopq is dilated by a scale factor of 0.8 with the origin as the center of dilation, resulting in the image m′n′o′p′q′. the coordinates of point m are (2, 4), and the coordinates of point n are (3, 5). the slope of is .

Determine whether the following statements are true and give an explanation or counterexample. bold a. when using the shell method, the axis of the cylindrical shells is parallel to the axis of revolution. bold b. if a region is revolved about the y-axis, then the shell method must be used. bold c. if a region is revolved about the x-axis, then in principle it is possible to use the disk/washer method and integrate with respect to x or the shell method and integrate with respect to y.

What is the definition of exponential decay?