Hey there!
As according to the mathematical acronym SOH CAH TOA (Sin Opposite Hypotenuse, Cos Adjacent Hypotenuse, Tan Opposite Adjacent), the correct answer would be the first choice,

.
The reason behind this is because the tangent value of an angle is always the length value opposite of given angle over the value adjacent (or right next to) the given angle.
In this case, the question is asking for Tan D. The side value opposite of angle D would be 12, and the length value that is adjacent to angle D is 5.
Therefore, the value of tan D would be

.
Hope this helps and I hope you have a marvelous day! :)
It takes 2/6 (two sixths) to make 1/3.
8x+3=13+x
8x-x=13-3 (you put the x on the right to the left side it becomes negative, as well as the 3 on the other side. The goal is to isolate the x's)
7x=10
x=10÷7
x=10/7 or about 1.43
Answer: 50C + 400T =8300
Step-by-step explanation: 50c cause chairs cost 50
400t cause tables cost 400
Answer:
It says that for me too, there must be a problem with their system.
Try asking the specific problem you are having, so if someone had that specific problem before, they can walk you through it! :)