Compare and contrast the formulas for the volume of a pyramid and the volume of a cone. Because a pyramid has a non-circular base, the volume is always described in square units, but the volume of a cone is stated in cubic units.

Because a pyramid has a non-circular base, the volume is always described in cubic units, but the volume of a cone is stated in square units.

Both formulas are 13Bh, but the base of a pyramid is always a square.

Both formulas are 13Bh, but the base of a cone is always a circle.

Both formulas are 1/3BH, but the cone is always a circle.

Step-by-step explanation:

The reason the volume of a cone involves using the fraction 1/3, is because it takes three cones to fill up a cylinder. So, if the volume of a cylinder is pi*r^2*h, and a cone is 1/3 the size, then the volume of a cone(which uses the same formula) has to have the 1/3rd in front.

in simplified version   it would be x ≤-4

step-by-step explanation:

multiply each term in x ≤-4 by -1

option 3 . (5x + 1) - (-10x + 6)

step-by-step explanation:

option 1 :

(4x + 3) + (-9x + 4)

or 4x+3 -9x + 4

or -5x + 7

option 2

(x - 2) - (6x - 9)

or x-2-6x + 9

or -5x + 7

option 3

(5x+ + 6)

or 5x + 1 + 10x -6

or 15x -5

option 4

-4x+2x+7-3x

-7x + 2x + 7

-5x + 7

hence only option 3 did   not satisfy the given simplify expression.