Sketch the graph of y = x2 + 2x -15 using your graphing calculator. What are the x intercepts on this graph?

Ahigh definition tv cost $800 with a down payment of 2/5 of the cost. how much is left to pay, in dollars after the down payment has been made?

An optical inspection system is used to distinguish among different part types. the probability of a correct classification of any part is 0.92. suppose that three parts are inspected and that the classifications are independent. let the random variable x denote the number of parts that are correctly classified. determine the probability mass function of x. round your answers to four decimal places (e.g. 98.7654). x f(x) 0 1 2 3

Julie was able to walk 16 km through the zoo in 6 hours. how long will it take her to walk 24 km through the zoo?