Aball was thrown upward into the air. the height, in feet, of the ball above the ground t seconds after being thrown can be determined by the expression -16t^2 + 40t +3. what is the meaning of the 3 in the expression?

An appliance store sells a washer-dryer combination for $1800. if the washer costs $300 more than the dryer, find the cost for each appliance.

Which system of linear inequalities is represented by the graph?

Aprobability experiment is conducted in which the sample space of the experiment is s={7,8,9,10,11,12,13,14,15,16,17,18 }, event f={7,8,9,10,11,12}, and event g={11,12,13,14}. assume that each outcome is equally likely. list the outcomes in f or g. find p(f or g) by counting the number of outcomes in f or g. determine p(f or g) using the general addition rule.