Answer:
No, it is not a function. The x repeats.
Answer:
gimme the rest of the question then i can properly answer this question
Step-by-step explanation:
Answer: 
Step-by-step explanation:
Observe in the figure given in the exercise that four right triangles are formed.
In this case you can use the following Trigonometric Identity to solve this exercise:
From the figure you can identify that:

Then, you can substitute values:

The next step is to solve for DE in order to find its value. This is:

Finally, rounding the result to the nearest tenth, you get that this is:

Answer: probably A
Step-by-step explanation:
Answer:
Step-by-step explanation:
c