What is a counterexample for the conjecture? . conjecture: any number that is divisible by 4 is also divisible by 8.. choices: . o 24. o 40. o 12. o 26.

I believe ur answer is 12.
Because 12 is divisible by 4, but is not divisible by 8.

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.