Answer:
X = 18
Y = 9√3
Step-by-step explanation:
use sin equation for right angle triangle
The sine of the angle
= ( the length of the opposite side ÷ the length of the hypotenuse.)
according to this question,
sin 30 = 9 / X
1/2 = 9 / X
X = 18
use cosine to find y
The cosine of the angle
= (the length of the adjacent side ÷ the length of the hypotenuse.)
cos 30 = y/x
√3/2 = y/ 18
y = 9 ✓3
Answer:
please try sending a photo so it would make more sense
The correct answer from the choices given will be -13 - 4i. The numerical part is the real number while the term containing i is the imaginary part.
<h3>What is the complex number?</h3>
A complex number is one that both a real and an imaginary component, both of which are preceded by the letter I which stands for the square root of -1.
The given complex number as;

By transfeering the left-hand side term to the right-hand side the sign will change. We will get the value of n as;

Hence the correct answer from the choices given will be -13 - 4i.
To learn more about the complex number refer to the link;
brainly.com/question/10251853
Answer:
45°
Step-by-step explanation:
- For this question, I'll name the "?" angle as x to avoid confusion.
- x and 45 are EQUAL to each other because they are corresponding angles
x = 45