20. Write the equation of the quadratic function that has a vertex of (-5,9) and passes through the point (-7, -15).

What is 20+(5 x 2/5 )+ 3 show your work

What is the 9th term in the geometric sequence described by this explicit formula? an=-6. (2)(n-1) apex

Study results indicate that the mean length of time people spend on a bus in a city is between 21.2 min and 24.5 min what is the study margin of the error?