Running from the top of a flagpole to a hook in the ground there is a rope that is 20 meters long. If the hook is 12 meters from the base of the flagpole, how tall is the flagpole?

Which of the following is a function? a.) {(-2, -4/5), (-1,-,,-1)} b.) {(-2,,1/,3/,1)} c.) {(-22)} d.) {(-21)}

Can you me find the missing length. i attached an image.

Scores on a university exam are normally distributed with a mean of 78 and a standard deviation of 8. the professor teaching the class declares that a score of 70 or higher is required for a grade of at least “c.” using the 68-95-99.7 rule, what percentage of students failed to earn a grade of at least “c”?