Phone calls arrive at a particular call center with an average of 12 every minute. The call center management want the maximum probability of having more calls than staff in any given minute being .2. How many staff are necessary to ensure this? You may find it easier to use excel than to use a calculator for this one.

Thee blue triangle has rotated from quadrant i to quadrant iii about the origin. describe the effects of the rotation on the coordinates of the blue triangle.

The figure shows triangle def and line segment bc, which is parallel to ef: triangle def has a point b on side de and point c on side df. the line bc is parallel to the line ef. part a: is triangle def similar to triangle dbc? explain using what you know about triangle similarity. part b: which line segment on triangle dbc corresponds to line segment ef? explain your answer. part c: which angle on triangle dbc corresponds to angle f? explain your answer. asap

Which shaded region is the solution to the system of inequalities? y y[tex]\geq[/tex]-x+1