squareroot 169-25
Select the correct choice below and, if necessary, fill in the answer box to complete your choice.
(Type an integer or a decimal.)
A. The expression is a real number. 169-25 = blank (And put the answer in integer or a decimal form.)
B. The expression is not a real number.
1 answer
To evaluate the expression \(\sqrt{169 - 25}\):
First, calculate \(169 - 25\): \[ 169 - 25 = 144 \]
Next, take the square root of \(144\): \[ \sqrt{144} = 12 \]
Thus, the expression is a real number.
The correct choice is:
A. The expression is a real number. \(169 - 25 = 144\) (And the answer is \(12\)).
