Answer:
Step-by-step explanation:
y= -5x/2+1
If you had the hypotenuse and one of the legs you could subtract the to using Pythagorean theorem. you cant answer the question unless you have another leg or a degree or a right triangle. <span />
Answer:
It is the longest one (20).
Step-by-step explanation:
The hypotenuse is the length opposite the right angle and between the legs. In this case it is the longest one.
Answer: 84
<u>Step-by-step explanation:</u>
Set up a proportion as follows: 

Cross multiply: 12x = 7 × 144
Divide by 12: x = 7 × 12
Simplify: x = 84