Answer:
5
Step-by-step explanation:
2(2/5+1/5)=2•3/5=6/5=1 1/5
Answer is C
Answer:
The answer to your question is letter A.
Step-by-step explanation:
Cosine is the trigonometric function that the adjacent side and the hypotenuse.
Formula
cos x =
For x:
Adjacent side = 5
Hypotenuse = 13
Substitution
cos x =
3x - 7 = 2x + 7
3x - 2x = 7 + 7
x = 14
2x + 7 + 12y + 1 = 180
2(14) + 7 + 12y + 1 = 180
12y + 36 = 180
12y = 144
y = 12
Answer
x = 14 and y = 12