Answer:

Step-by-step explanation:
You could change the equation to this: 
*This is the exact same as 
You can continue to break this down until you get:

*This too = 
With this new equation, you can cancel out the common term: 
You come up with my answer.
<em>Hope this helps!!</em>
Answer:
Option B is correct.i.e.,
Step-by-step explanation:
Given: Pyramid with equilateral triangle as base
Length of side of equilateral triangle = s unit
to find: height of equilateral triangle
Here we use a property of equilateral triangle.
Perpendicular from a vertex on a side and median of that side of a triangle is same in equilateral triangle.
All heights are of equal length. So, we just need to find one height or length of 1 altitude.
Figure of base triangle is attached
In Δ ABC
AB = BC = AC = s unit
AD is height
BD = 
Now, In Δ ABD
using pythagoras theorem
BD² + AD² = AB²








Therefore, Option B is correct.i.e., 
2.2 with the decimal 2 repeating
Answer:
x=3
x=4
1/2=x
15=x
x=5
x=4
x=5
x=16
x=11
x=4
x=8
x=6
x=2
Step-by-step explanation:
I dont know if you meant 12x - 24 or 12x=24