Question

I need you guy’s help answer thanks so much

Answer 1

Answer:

B. 7i

Step-by-step explanation:

first we need to find the root of the expression

$\sqrt{-49} = \sqrt{49} *\sqrt{-1} \\ \\ \sqrt{49} = 7\\\\and\\\\ \sqrt{-1} = i$

so the answer is B. 7i