1.

Answer D.
2.
From secant theorem, we know, that:

and from picture:

So we can calculate:
Answer:
V = 8 cm³
Step-by-step explanation:
the volume (V) of a cube is calculated as
V = s³ ( s is the side length )
here s = 2 , then
V = 2³ = 8 cm³
Answer:
210 meters
Step-by-step explanation:
x² + 32500 = 76600
x² = 76600 - 32500
x² = 44100
This already is a perfect square
x = 210
(x is a side, so can't be negative. Therefore only positive square root)
Answer:
I suggest using the app called Cymath it helps and is completely free