So if we have (x) to the power of 2. We may say (x) squared. This is because a square has two dimensions (length and width). Now if we have (x) to the power of 3. We may say (x) cubed. This is because a cube has 3 dimensions (length, width and height). Hope that answers your question!
Answer:
x>5/2
Step-by-step explanation:
4x>10
x>10/4
x>5/2
Answer:
x = - 
Step-by-step explanation:
the equation of a circle centred at the origin is
x² + y² = r² ( r is the radius )
The radius of a unit circle is r = 1
substitute (x, -
) into the equation and solve for x
x² + (-
)² = 1²
x² +
= 1 ( subtract
from both sides )
x² = 1 -
=
( take square root of both sides )
x = ±
= ± 
since the point is in the 3rd quadrant then x < 0
x = - 
0.000038 = 3.8e-5 = 3.8×10⁻⁵