17.156 is rational. Hope that helped.
Answer:
-3
Step-by-step explanation:
In the Triangle ABD, Using Pythagoras theorem we can write

In the Triangle ACD using Pythagoras Theorem

Now in the larger Triangle ABC, we can write

Now substitute the values from the above equations we get

Answer:
tan(35) = x/20
20(tan(35)) = x
14.0 in. = x
14.0 inches
Step-by-step explanation:
use trigonometry to figure out the height.
Answer:
y = -1/4x - 2
Step-by-step explanation:
Since the line has to be perpendicular, that means the new slope multiplied by the original should be -1. The original slope is 4, so the new one would be -1/4. Now our equation is y = -1/4x + z, z being the y intercept. We can find this by substituting the point in and finding the match. 1= -1/4(-12) + z. z has to equal -2, so the answer is y = -1/4x - 2