Can anyone tell me what this is, what unit it is, and how to solve it... Please and thanks. Problem is in the picture.

Answer:
8(+)6=SQR(8^2+6^2)
SQR(64+36)
SQR(100)
=10
Step-by-step explanation:
p + Q is equal to square root of p square + Q Square
sqr means square root
Answer:
10
p + Q= square root of p square + Q Square
Step-by-step explanation:
p(+)q=sqr(p^2+q^2)
8(+)6=sqr(8^2+6^2)
The square root of(64+36)
The square root of(100)
=10
Hope this helped! pls mark brainliest