Answer:
A
Step-by-step explanation:
12/4=3
20/4=5
4x - 3y + 20 = 0....4x - 3y = -21
4x - 3y = -21.....multiply by -2
5x - 6y = -25
----------------
-8x + 6y = 42 (result of multiplying by -2)
5x - 6y = -25
---------------add
-3x = 17
x = -17/3
this system of equations has 1 solution
Step-by-step explanation:
the scale factor is 1
1/1
both triangles are similar and the scale factor is 1/1
....................
Answer:
210
Step-by-step explanation:
The volume of a cone is the base * height / 3. We know the base is 45 and the height is 14, so that means the volume is 45 * 14 / 3 = 210
