A baseball is projected upward at 64 feet per second. It can be approximated by the equation - 16t^2+64t. The baseball reaches it maximum
height at the vertex. That can be gotten from x= –b/2a
How long until the
baseball reaches its full height? Note a quadratic equation can be written as
ax^2+bx+c

Customers at an ice-cream shop took a survey .the results showed that 144 customers rated the shop as being "very satisfactory ."this number represented 45%of the total nunber of customers who took the survey

An automated water dispenser fills packets with one liter of water on average, with a standard deviation of 5 milliliter. the manual says that after a year of operation the dispenser should be tested to see if it needs recalibration. a year later a number of filled packets are set aside and measured separately. it is found that the average packet now contains about 0.995 liters. does the dispenser need calibration? explain your answer.

What is the factored form of the following expressions? d^2 – 13d + 36