OpenStax, Elementary Algebra 2e §8.9 Use Direct and Inverse Variation · Exercise 19 · Algebra · Rational expressions
Use Direct and Inverse Variation · Exercise 19
Solve.
The area of a circle varies directly as the square of the radius. A circular pizza with a radius of 6 inches has an area of 113.04 square inches.
ⓐ Write the equation that relates the area to the radius.
ⓑ What is the area of a personal pizza with a radius 4 inches?
OpenStax, Elementary Algebra 2e · §8.9 Use Direct and Inverse Variation · Exercise 19
Stuck? A gentle nudge
No hints for this one.
Your working
Check your full solution
Attach photos of your pages (up to 3) or one PDF — or check what you typed above. Lemma reads the work and verifies the reasoning, not just the answer.
Your first check today doesn't need an account.
Your photos and PDFs are read once and not stored — only the transcription is kept.