What is the positive square root of 16?
Understand the Problem
The question is asking for the positive square root of the number 16, which is a basic mathematical concept.
Answer
The positive square root of 16 is $4$.
Answer for screen readers
The positive square root of 16 is $4$.
Steps to Solve
- Identify the square root of 16
To find the positive square root of a number, we need to determine which number, when multiplied by itself, equals that number. Here, we are looking for the positive square root of 16.
- Perform the calculation
We look for a number $x$ such that: $$ x^2 = 16 $$
The square root operations gives us two solutions: $x = 4$ and $x = -4$. However, since we are only interested in the positive square root, we select $x = 4$.
- State the positive square root
Thus, the positive square root of 16 is: $$ \sqrt{16} = 4 $$
The positive square root of 16 is $4$.
More Information
The square root is an important concept in mathematics, often used in various applications, including geometry, algebra, and quadratic equations. Recognizing that square roots can have both positive and negative values is crucial, but many problems specify the need for the positive root.
Tips
One common mistake is to forget that every positive number has both a positive and a negative square root. It's important to clearly understand whether the problem requires only the positive value.
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