4 is correct. Set up a ratio relationship between similar triangles. 
Answer:
I think it 3.15 if it wrong I'm not even here
Answer:
Step-by-step explanation:
Not sure
Answer:
Let x = the 2nd number
Let x + 8 = the first number
Let 4x = the third number
x + x + 8 + 4x = 122
6x + 8 = 122
6x = 114
x = 19
x + 8 = 19 + 8 = 27
4x = 4(19) = 76
Step-by-step explanation:
The sum of three numbers is 122 . The first number is 8 more than the second. The third number is 4 times the second
Find the length of the hypotenuse by using either "sine" or "cosine".
Sine= Length of opposite side/ Hypotenuse
Cosine= Length of adjacent side/ Hypotenuse
In order to use one of these, it depends on which angle they give you other than 90 degrees.
Hope this helps!
