The -coordinate is the first number in an ordered pair used to locate a point on a coordinate plane.

Here for a good time of free question

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.

Ithink it is15not sure tho

The answer is d, none of above hope i