Times for an ambulance to respond standard deviation of 50 seconds.
to a medical emergency
n a certain town are normally distributed with a mean of 450 seconds and a
Suppose there are 97 emergencies in that town.
In about how many emergencies are the response times expected between 400 seconds and 500 seconds?

Solve each equation using the quadratic formula. find the exact solutions. 6n^2 + 4n - 11

Look at the figure below: triangle abc is a right triangle with angle abc equal to 90 degrees. the length of ac is 5 units and the length of ab is 4 units. d is a point above c. triangle adc is a right triangle with angle dac equal to 90 degrees and dc parallel to ab. what is the length, in units, of segment cd?

What is the 17th term in the arithmetic sequence in which a6 is 101 and a9 is 83