7. The amount of time it takes an athlete to complete a Ninja warrior course is normally distributed with mean 8.25 minutes and standard deviation 0.4 minutes. What percent of athletes complete the course in less than 7.5 minutes?
A00304
B. 05134
01342
0.3892

The sat and act tests use very different grading scales. the sat math scores follow a normal distribution with mean 518 and standard deviation of 118. the act math scores follow a normal distribution with mean 20.7 and standard deviation of 5. suppose regan scores a 754 on the math portion of the sat. how much would her sister veronica need to score on the math portion of the act to meet or beat regan's score?

The scatterplot below shows the number of hours that students read weekly and the number of hours that they spend on chores weekly. which statement about the scatterplot is true?

Solve each quadratic equation by factoring and using the zero product property. x^2 + 18x = 9x