What expression represents the volume of a cylindrical can with …

Mathematics Questions

What expression represents the volume of a cylindrical can with a radius of (x + 8) and a height of (2x + 3) using the formula V = œAr¬≤h?

Short Answer

The volume of a cylinder is calculated using the formula V = œAr¬≤h, with r as the radius and h as the height. In this case, substituting the radius (x + 8) and height (2x + 3) into the formula yields V = œA(x + 8)¬≤(2x + 3), which simplifies to V = œA(2x¬≥ + 35x¬≤ + 176x + 192).

Step-by-Step Solution

Understand the Cylinder Volume Formula

The volume of a cylinder is calculated using the formula V = ≈ìAr¬¨‚â§h, where r is the radius and h is the height. In this scenario, the radius is given as (x + 8) and the height as (2x + 3). It’s crucial to identify these parameters accurately to ensure correct calculations.

Substitute the Values

Next, substitute the values of r and h into the volume formula. By substituting, we rewrite it as V = œA(x + 8)¬≤(2x + 3). This step transforms the general formula into a specific expression that incorporates your variables. Double-check that the substitutions are correct to avoid errors.

Simplify the Expression

Finally, simplify the expression to derive the volume. Start by expanding (x + 8)¬¨‚â§ to get (x¬¨‚â§ + 16x + 64), then multiply by (2x + 3). This results in the final volume expression: V = ≈ìA(2x¬¨‚â• + 35x¬¨‚â§ + 176x + 192). The simplification provides a usable formula for calculating the cylinder’s volume directly.

Related Concepts

Cylinder Volume Formula

A mathematical expression used to calculate the volume of a cylinder, represented as v = œar¬≤h, where r is the radius and h is the height of the cylinder.

Substitution

The process of replacing variables in a mathematical expression with their specific values or expressions to derive a new, specific equation.

Simplification

The process of modifying a mathematical expression to its simplest or most concise form, often involving expanding expressions, combining like terms, and reducing the expression.

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