Question

simplify: $\sqrt{400} + \sqrt{100} - \sqrt{900}$
a -400
b -20
c 0
d 20

Explanation:

Step1: Calculate each square root

$\sqrt{400}=20$, $\sqrt{100}=10$, $\sqrt{900}=30$

Step2: Substitute and compute sum

$20 + 10 - 30$

Step3: Simplify the expression

$30 - 30 = 0$

Answer:

C. 0