El cateto de un triángulo rectángulo cuando la hipotenusa mide 66 cm y el otro cateto mide 15 cm.

The head librarian at the library of congress has asked her assistant for an interval estimate of the mean number of books checked out each day. the assistant provides the following interval estimate: from 740 to 920 books per day. what is an efficient, unbiased point estimate of the number of books checked out each day at the library of congress?

Solve the equation using the given values: x= -2.5; y= -7.51. 2xy + 2x²

If you had $1,900,000, how many days would it take you to spend all if you spent $1 a second. (there are 86,400 seconds in a day)