An object is thrown upward from a height of 50ft with an initial velocity of 48 ft per sec. the height in feet after t seconds is given by s(t) = -16t^2 + 48t + 50. find the height of the object 3 sec after it is thrown upward.

33% of college students say they use credit cards because of the rewards program. you randomly select 10 college students and ask each to name the reason he or she uses credit cards. find the probability that the number of college students who say they use credit cards because of the rewards program is (a) exactly two, (b) more than two, and (c) between two and five inclusive. if convenient, use technology to find the probabilities.

In the xy-plane, if the parabola with equation passes through the point (-1, -1), which of the following must be true?

Apatient is to be given 35 milligrams of demerol every 4 hours. you have demerol 50 milligrams/milliliter in stock. how many milliliters should be given per dose?