Let A(0,1)and B(-4, 3) be two Fixed Find the locus of point o such that
PA² - PB² = 16​

The heaviest 16% of all men in weight weigh more than how many pounds ?

Avegetable garden and a surrounding path are shaped like a square that together are 11ft wide. the path is 2ft wide. find the total area of the vegetable garden and path

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”?