Um i would need more details
But i thing you would add those together
Your answer is 7^(- 2) or

or
Answer:
5.6
Step-by-step explanation:
Use pythag to get SU. 10^2 + x^2 = 15^2, this will give you x = 11.2. 11.2 is the diameter of SU so divide it by 2 to get the radius. 11.2/2= 5.6.
Answer:
one solution it is x=1
Step-by-step explanation:
i can type in the steps if you want