Place a number next to a student or lab equipment that is something correct in a lab (1-8) or something that is incorrect for a lab (9-16) and then write a brief explanation of what the student was doing wrong.

complete the square on the right side of the equation;

-5(x + 0)^2 + 15

answer: d. y = -x^2 + 15

i think it would be b. tissue because an organ system is a group of organs that work together to perform one or more functions. each does a particular job in the body, and is made up of certain tissues.