Question

Simplify $\sqrt{729} - \sqrt{400}$.

• A. 8
• B. 5
• C. 6
• D. 7

Answer 1

Answer:

D. 7

The simplified value of the given expression is 7.

$\sqrt{729} - \sqrt{400}$

1. Find the value of each square root:

* $\sqrt{729} = 27$ (since $27 \times 27 = 729$)

* $\sqrt{400} = 20$ (since $20 \times 20 = 400$)

2. Subtract the values:

$27 - 20 = \mathbf{7}$