Answer: 1st,2nd, and 4th one are correct.
Step-by-step explanation:
Cosine is
which applies to a right triangle. I hope that helps you.
Answer:
<h3>I do not know what some of the words mean but I believe it is c</h3><h3 />
Step-by-step explanation:
Distribute the 1/4:
1/4(16x) + 1/4(20) - 7x
Do the multiplication:
1/4(16x) = 16x/4 = 4x
1/4 (20) = 20/4 = 5
Now you have:
4x + 5 - 7x = 0
Combine like terms (4x and -7x):
-3x + 5 = 0
Subtract 5 from both sides:
-3x = -5
Divide by -3:
x = -5/-3 = 5/3
Answer:
x= 5/3
