X+ 4? idk I don't really understand the question...
You can treat sq rt5 as a variable even though it is a number:
Ex: x + x = 2x
Or as a number: 5 + 5 = 10 or 2(5)
So sq rt5 + sq rt5 = 2sq rt5
Answer:
D
Step-by-step explanation:
The inscribed angle x whose vertex lies on the circle and whose sides are chords of the circle is one half the measure of the intercepted arc, thus
x = 0.5 × 102° = 51° → D
