Identify the number as rational or irrational. explain. type your answers below.

-√127

In a two-digit number the units' digit is 7 more than the tens' digit. the number with digits reversed is three times as large as the sum of the original number and the two digits. find the number.

Jayne is studying urban planning and finds that her town is decreasing in population by 3% each year. the population of her town is changing by a constant rate.true or false?

Solve for x where 0 equation: cot^2x+2cotx+1=0