Using the extended euclidean algorithm, or otherwise, calculate the preferred n- verse 102-1 mod 755. use hand calculation and show all working 15 marks

In the final round of trivia competition, contestants were asked to name as many states that begin with the letter m as they could in 15 seconds. the bar graph shows the number of states the contestants were able to name. how many contestants participated in the final round of the competition?

Will give brainliest series to sigma notation write the following series in sigma notation. 6+10+14+18+22+26+30 example image shown below.

For what values of the variable x is the expression square root of 7x+14+ square root of 7-x a real number?