Lemma
EasyExponentials & logarithms
OpenStax, Algebra and Trigonometry 2e §6.1 Exponential Functions · Try It 11 · Algebra · Exponentials & logarithms

Exponential Functions · Try It 11

Using the data in, how much radon-222 will remain after one year?

~5 minWritten answer · check your work with Lemma

OpenStax, Algebra and Trigonometry 2e · §6.1 Exponential Functions · Try It 11

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.