You have to multiply by the complex conjugate so that you can clear the radical from the denominator.
Once you do the multiplication simplify the radical. There's still a common factor in -54, -18, & 75 so divide all those by 3.
Its 576 if you multiply 48 and 12 you get 576
As seen in the figure, AD and AB lie both on the x-axis.This means the ordinate value of each coordinate is equal to zero. POint D has a coordinate of (9,0) while point B has a coordinate of (3,0). A is at (0,0). hence, using distance formula, the ratio of AD to AB is 3.
3/8 is the correct answer
Answer:
128°
Step-by-step explanation:
180°-90°-38°= 52°
180°-52°= 128°