what is the positive square root of 25?

# Explanation: ## Step1: Recall square - root concept The positive square root of a number \(x\), denoted as \(\sqrt{x}\), is a non - negative number \(y\) such that \(y^2=x\). For \(x = 257\), we want to find \(y=\sqrt{257}\). Since \(257\) is a prime number, we can approximate its value. We know that \(16^2=256\) and \(17^2 = 289\). Using a calculator, \(\sqrt{257}\approx16.031\) # Answer: \( \sqrt{257}\approx16.031\)