What 5 numbers that round to 360 when rounded to the nearest 10

The 5 number that would round to 360 are 359,358,357,356, and 355 would all round up to 360 and 361,362,363,364 would all round down to 360

First step is to get rid of the square root. remember that a square root is the same as raising to the (1/2) power. see below: multiply exponents per exponent rules to get: remember you subtract exponents from the denominator and add exponents in the numerator so: simplify further: so a is the correct choice. if you don't understand this google exponent rules and it will you understand. look at the image results.