Find the volume of a right circular cone that has a height of 7.6 in and a base with a radius of
4.4
in. Round your answer to the nearest tenth of a cubic inch.

9514 1404 393

  V ≈ 154.1 in³

Step-by-step explanation:

Use the formula for the volume of a cone:

  V = (1/3)πr²h

  V = (1/3)π(4.4 in)²(7.6 in) ≈ 49.045π in³

  V ≈ 154.1 in³

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Additional comment

If you use 3.14 for π, your result will be 154.0 in³.

check the picture below.

well, the angle at the vertex d is clearly not a right-angle, let's check for the one at the vertex f which does look like,   however if it's indeed, that means ef is perpendicular to df, in which case their slopes will be negative reciprocal of each other.

so the negative reciprocal of the slope of ef is 1, however the slope of df is not 1, is 1/2, so nope, they're not perpendicular lines.

f(x) = x^3 -2x^2 -3x

x( x^2 -2x-3)

x( x^2 +x -3x -3)

x( x(x+1) -3(x+1))

x( x-3)( x+1)

so zeroes are 0, 3,-1

its (2) option