PLEASE HELP! Test scored of 12 students are 31, 41, 45, 48, 52, 55, 56, 56, 65, 67, 67, 69

What is the mean and standard deviation?

Write a recursive sequence that represents the sequence defined by the following explicit formula:

Your best friend told you that last week scientists disco y that las vegas is responsible for abrupt climate changes. which do you think is best way to research that recent discovery? an encyclopedia usgs internet site a book in the library your best friend’s parents for your ! ❤️

Find the value of the variable and the length of each chord for #5 and #6.