Derek threw a baseball across the field. the path of the ball can be represented by the equation h =-16t ² +75t+5, where t represents the number of seconds the ball was in the air, and h, represents the height of the ball in feet. the baseball was 2 feet above ground after how many seconds?
f 4.5 seconds
g 4.75 seconds
h 4.73 seconds
j 4.8 seconds

James adds two numbers a + b. sally adds the same two numbers but reverse the order b + a what property of addition assures us that james and sally will get the same sum

Solve the given system of equations. 2y= -x+9 , 3x-6= -15

Bella want to know what the students at her school think of her show. which is the best group to survey to find this information a. go to the mall and ask all of the students she recognizes from school b. ask her viewers to call in durning an episode of the show c. get a list of students at her school from the office and use a random number generator to pick 30 of them d. get a list of students at her school from the office and pick the first 30 students on the list