Which of the equations below could be the equation of this parabola?
1
1
5
— — —— — ——
vertex / 1 (0, 0)
—
—
—
——
оа. y= 3х2
ов. х = -3y?
ос. у= -3х2
od. х = 3у2

1. there are 25 students who started computer programming in elementary school and 25 students who started computer programming in middle school. the first group had a mean final project grade of 95% and the second group had a mean final project grade of 92%. the line plot shows the differences after 10 rerandomizations. determine whether the difference in the means of the two groups is significant based on the line plot. explain your answer.

Tom had a total of $220 and he spent $35 on a basketball ticket . what percent of his money did he have left?

To solve the system of equations below, grace isolated the variable y in the first equation and then substituted into the second equation. what was the resulting equation? 3y=12x x^2/4+y^2/9=1