PLEASE HELP Decide whether the event is independent or dependent. Explain your answer.

Mr. Fernandez's class contains 14 boys and 16 girls. Mr. Fernandez randomly picks a boy and a girl to represent the class at the school spelling bee.​

The position of a moving particle is given by the position function: f(t)=-9t-t^2-0.2t^3+0.1t^4 0 a. at what time does the particle reverse direction? b. when is the displacement positive? (round one decimal place and answer in interval notation) c. when is the displacement negative? (round one decimal place and answer in interval notation) d. when is the particle’s acceleration positive? (round one decimal place and answer in interval notation) e. when is the particle’s acceleration negative? (round one decimal place and answer in interval notation)

What is the distance between point a and b

Use the elimination method to solve the systems of equations. choose the correct ordered pair. 7x+4y=39