Determine whether 42 is divisible by 2,3,5,and/or 10

42 is divisible by 2 and 3

42 is only evenly divisible by 1 2 3 6 7 14 21 42. Therefore it is divisible by 2.

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.