Answer: About 3.06
Step-by-step explanation:
We can use trigonometry functions to solve for AC. Let the ?, representing AC, be "x" in our mathematical work.
Since we have the hypotenuse and x is adjacent to the angle given, I am going to use cosine.
cos(θ) = 
cos(40) = 
0.766 ≈ 
3.06 ≈ x
x ≈ 3.06
1.) D
2.) A................
-12 is an integer number, and you can write it as {-12}{1}
7.3 is a rational number, and you can write is as {73}{10}
0.41 is a rational number, and you can write is as {41}{100}
6 is a whole number, and you can write it as {6}{1}
3 1/2 is a rational number, and you can write is as
3+{1}{2}={6}{2}+{1}{2}={7}{2}
Hopes this helps also will you mind giving me brainliest?
1. D
2. A
3. A
Hope it helps!

Here's the solution :
slope of the line is equal to :
slope of given line = 3