A model rocket is launched straight upward. The solid fuel propellant pushes the rocket off the ground at an initial velocity of 50 feet per second. s(t)= -4t2 + 50t - 84. Show work to get credit

a. What is the maximum height reached by the rocket?

b. What time will it reach the maximum height?

c. You forgot to put the parachute in the rocket. When will the rocket hit the ground?

Two language majors, anna and megan, took exams in two languages. anna scored 85 on both exams. megan scored 74 on the first exam and 85 on the second exam. overall, student scores on the first exam had a mean of 82 and a standard deviation of 4, and the second exam scores had a mean of 71 and a standard deviation of 13. a) to qualify for language honors, a major must maintain at least an 85 average across all language courses taken. so far, which of anna and megan qualify? b) which student's overall performance was better?

Drag each equation to the correct location on the table. for each equation, determine the number of solutions and place on the appropriate field in the table.

The perimeter of a quarter circle is 14.28 miles. what is the quarter circle's radius?