Lemma
EasyQuadratics
OpenStax, Elementary Algebra 2e §10.4 Solve Applications Modeled by Quadratic Equations · Example 2 · Algebra · Quadratics

Solve Applications Modeled by Quadratic Equations · Example 2

An architect is designing the entryway of a restaurant. She wants to put a triangular window above the doorway. Due to energy restrictions, the window can have an area of 120 square feet and the architect wants the width to be 4 feet more than twice the height. Find the height and width of the window.

Its source prints no answer for this problem, so there's nothing to check against.

~5 minWritten answer · check your work with Lemma

OpenStax, Elementary Algebra 2e · §10.4 Solve Applications Modeled by Quadratic Equations · Example 2

Stuck? A gentle nudge

No hints for this one.

Something off?
Workspace
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.