Answer:

Step-by-step explanation:
The picture of the question in the attached figure
we know that
In the right triangle of the figure
----> by SOH (opposite side divided by the hypotenuse)
using a calculator

Answer:
jermaine is closer
Step-by-step explanation:
Answer:
80
Step-by-step explanation:
89^2-39^2=6400, 6400=80^2
Answer:
They should insert that y value into the other equation.
Step-by-step explanation: