SOMEONE HELP ME Out PLS

The answer is option B.

Step-by-step explanation:

To find EF we use the sine rule

DE / sin F = EF / sin D

since EF corresponds to D

D = 75°

F = 50°

DE = 3

So EF is

3 / sin 50° = EF / sin 75°

Make EF the subject

EF = 3sin 75° / sin 50°

EF = 3.78

The final answer is

EF = 3.8

Hope this helps you

a complex number is a number that can be expressed in the form a + bi, where a and b are real numbers, and i is a solution of the equation x2 = −1. because no real number satisfies this equation, i is called an imaginary number. has no real solution, since the square of a real number cannot be negative.