Is the square root of 65 rational or irrational?​

Write a function for a rotation 90 degrees counter clockwise about the origin, point 0

The standard deviation for a set of data is 5.5. the mean is 265. what is the margin of error?

The perimeter of a rectangular lot of land is 436 ft. this includes an easement of x feet of uniform width inside the lot on which no building can be done. if the buildable area is 122 ft by 60 ft, determine the width of the easement. select one: a. 9 feet b. 18 feet c. 4.5 feet d. 7 feet