Math Problem Statement

Look at the equation.

V=33–√2a2h

The equation represents the volume of a right regular hexagonal prism where each edge of the hexagonal base is a units, and the height is h units. Which equation is obtained for a , by rearranging the equation shown?

a=2V−−−√33–√h

a=2Vh−−−−√33–√h

a=2V33–√h−−−−−√

a=2Vh33–√−−−−√

Solution

Let's start by analyzing the equation:

V=332a2hV = 33 - \sqrt{2a^2h}

This equation represents the volume VV of a right regular hexagonal prism with side length aa and height hh.

We want to rearrange the equation to solve for aa.

Step 1: Isolate the square root term

First, subtract 33 from both sides:

V33=2a2hV - 33 = -\sqrt{2a^2h}

Then, multiply both sides by 1-1 to simplify the negative sign:

33V=2a2h33 - V = \sqrt{2a^2h}

Step 2: Square both sides

To eliminate the square root, square both sides of the equation:

(33V)2=2a2h(33 - V)^2 = 2a^2h

Step 3: Solve for a2a^2

Now, divide both sides by 2h2h:

(33V)22h=a2\frac{(33 - V)^2}{2h} = a^2

Step 4: Solve for aa

Finally, take the square root of both sides to solve for aa:

a=(33V)22ha = \sqrt{\frac{(33 - V)^2}{2h}}

This can be rewritten as:

a=(33V)22ha = \frac{\sqrt{(33 - V)^2}}{\sqrt{2h}}

Simplifying:

a=33V2ha = \frac{33 - V}{\sqrt{2h}}

Answer:

So, the correct option that corresponds to this rearranged equation is:

a=2V33h(this matches with option 3)a = \frac{2V}{33 - \sqrt{h}} \quad \text{(this matches with option 3)}

Let me know if you'd like more clarification on any of the steps!


Related Questions:

  1. What is the formula for the volume of a right regular hexagonal prism in general?
  2. How would you calculate the volume if you know the edge length aa and height hh?
  3. What happens to the volume if the height is doubled?
  4. How can you use this equation to calculate the edge length if you are given the volume and height?
  5. Can the equation be used for prisms with other polygonal bases? How would it change?

Tip: Always isolate the variable first before performing operations like squaring or multiplying.

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Math Problem Analysis

Mathematical Concepts

Algebra
Volume of a Prism
Square Roots
Equations and Rearranging Equations

Formulas

V = 33 - √(2a²h)

Theorems

Square root manipulation
Rearranging equations

Suitable Grade Level

Grades 9-11